Sets the variable name. Here are the available variables:
3DCONVERSIONMODE, 3DDWFPREC, 3DOSMODE, 3DSELECTIONMODE, ACADLSPASDOC, ACTPATH, ACTRECPATH, ACTUI, AECCBPASTEAVAILABILITY, AECENABLEASSOCANCHOR, AECENABLESECTIONCLEANUP, AECFORCEDEFAULTMODELVIEW, AECFORCEDISPLAYBYSIZEDISABLED, AECFORCEEXPLODETOSOLID, AECPSDAUTOATTACH, AECPSDVISIBILITY, AFLAGS, ANGBASE, ANGDIR, ANNOALLVISIBLE, ANNOAUTOSCALE, ANNOMONITOR, ANNOTATIVEDWG, APBOX, APERTURE, APPAUTOLOAD, APPLYGLOBALOPACITIES, ARRAYASSOCIATIVITY, ARRAYTYPE, ATTDIA, ATTIPE, ATTMODE, ATTMULTI, ATTREQ, AUDITCTL, AUNITS, AUPREC, AUTODWFPUBLISH, AUTOMATICPUB, AUTOSNAP, BACKGROUNDPLOT, BACTIONBARMODE, BACTIONCOLOR, BCONSTATUSMODE, BDEPENDENCYHIGHLIGHT, BGRIPOBJCOLOR, BGRIPOBJSIZE, BINDTYPE, BLOCKEDITLOCK, BPARAMETERCOLOR, BPARAMETERFONT, BPARAMETERSIZE, BPTEXTHORIZONTAL, BTMARKDISPLAY, BVMODE, CACHEMAXFILES, CACHEMAXTOTALSIZE, CALCINPUT, CAMERADISPLAY, CAMERAHEIGHT, CANNOSCALE, CAPTURETHUMBNAILS, CBARTRANSPARENCY, CCONSTRAINTFORM, CDYNDISPLAYMODE, CECOLOR, CELTSCALE, CELTYPE, CELWEIGHT, CENTERCROSSGAP, CENTERCROSSSIZE, CENTEREXE, CENTERLAYER, CENTERLTSCALE, CENTERLTYPE, CENTERLTYPEFILE, CENTERMARKEXE, CENTERMT, CETRANSPARENCY, CHAMFERA, CHAMFERB, CHAMFERC, CHAMFERD, CHAMMODE, CIRCLERAD, CLASSICKEYS, CLAYER, CLAYOUT, CLIPROMPTLINES, CLIPROMPTUPDATE, CMATERIAL, CMDDIA, CMDECHO, CMDINPUTHISTORYMAX, CMFADECOLOR, CMFADEOPACITY, CMLEADERSTYLE, CMLJUST, CMLSCALE, CMLSTYLE, CMOSNAP, COLORTHEME, COMMANDPREVIEW, COMPARECOLOR1, COMPARECOLOR2, COMPARECOLORCOMMON, COMPAREFRONT, COMPAREHATCH, COMPAREPROPS, COMPARERCMARGIN, COMPARERCSHAPE, COMPARESHOW1, COMPARESHOW2, COMPARESHOWCOMMON, COMPARESHOWRC, COMPARETEXT, COMPARETOLERANCE, COMPASS, COMPLEXLTPREVIEW, CONSOLIDATIONMODE, CONSTRAINTBARDISPLAY, CONSTRAINTBARMODE, CONSTRAINTCURSORDISPLAY, CONSTRAINTINFER, CONSTRAINTNAMEFORMAT, CONSTRAINTSOLVEMODE, COORDS, COPYMODE, CROSSINGAREACOLOR, CTAB, CTABLESTYLE, CULLINGOBJ, CULLINGOBJSELECTION, CURSORBADGE, CURSORSIZE, CURSORTYPE, CVIEWDETAILSTYLE, CVIEWSECTIONSTYLE, CVPORT, DATALINKNOTIFY, DBLCLKEDIT, DCTCUST, DCTMAIN, DEFAULTGIZMO, DEFAULTINDEX, DEFAULTLIGHTING, DEFAULTLIGHTINGTYPE, DELOBJ, DEMANDLOAD, DGNFRAME, DGNIMPORTMAX, DGNIMPORTMODE, DGNIMPORTUNITCONVERSION, DGNOSNAP, DIMADEC, DIMALT, DIMALTD, DIMALTF, DIMALTRND, DIMALTTD, DIMALTTZ, DIMALTU, DIMALTZ, DIMAPOST, DIMARCSYM, DIMASO, DIMASSOC, DIMASZ, DIMATFIT, DIMAUNIT, DIMAZIN, DIMBLK, DIMBLK1, DIMBLK2, DIMCEN, DIMCLRD, DIMCLRE, DIMCLRT, DIMCONSTRAINTICON, DIMCONTINUEMODE, DIMDEC, DIMDLE, DIMDLI, DIMDSEP, DIMEXE, DIMEXO, DIMFIT, DIMFRAC, DIMFXL, DIMFXLON, DIMGAP, DIMJOGANG, DIMJUST, DIMLAYER, DIMLDRBLK, DIMLFAC, DIMLIM, DIMLTEX1, DIMLTEX2, DIMLTYPE, DIMLUNIT, DIMLWD, DIMLWE, DIMPICKBOX, DIMPOST, DIMRND, DIMSAH, DIMSCALE, DIMSD1, DIMSD2, DIMSE1, DIMSE2, DIMSHO, DIMSOXD, DIMTAD, DIMTDEC, DIMTFAC, DIMTFILL, DIMTFILLCLR, DIMTIH, DIMTIX, DIMTM, DIMTMOVE, DIMTOFL, DIMTOH, DIMTOL, DIMTOLJ, DIMTP, DIMTSZ, DIMTVP, DIMTXSTY, DIMTXT, DIMTXTDIRECTION, DIMTXTRULER, DIMTZIN, DIMUNIT, DIMUPT, DIMZIN, DISPLAYVIEWCUBEIN2D, DISPLAYVIEWCUBEIN3D, DISPSILH, DIVMESHBOXHEIGHT, DIVMESHBOXLENGTH, DIVMESHBOXWIDTH, DIVMESHCONEAXIS, DIVMESHCONEBASE, DIVMESHCONEHEIGHT, DIVMESHCYLAXIS, DIVMESHCYLBASE, DIVMESHCYLHEIGHT, DIVMESHPYRBASE, DIVMESHPYRHEIGHT, DIVMESHPYRLENGTH, DIVMESHSPHEREAXIS, DIVMESHSPHEREHEIGHT, DIVMESHTORUSPATH, DIVMESHTORUSSECTION, DIVMESHWEDGEBASE, DIVMESHWEDGEHEIGHT, DIVMESHWEDGELENGTH, DIVMESHWEDGESLOPE, DIVMESHWEDGEWIDTH, DONUTID, DONUTOD, DRAGMODE, DRAGP1, DRAGP2, DRAGVS, DRAWORDERCTL, DTEXTED, DWFFRAME, DWFOSNAP, DWGCHECK, DXEVAL, DYNCONSTRAINTDISPLAY, DYNCONSTRAINTMODE, DYNDIGRIP, DYNDIVIS, DYNINFOTIPS, DYNMODE, DYNPICOORDS, DYNPIFORMAT, DYNPIVIS, DYNPROMPT, DYNTOOLTIPS, EDGEMODE, ELEVATION, ERHIGHLIGHT, EXPERT, EXPLMODE, EXPORTEPLOTFORMAT, EXPORTMODELSPACE, EXPORTPAGESETUP, EXPORTPAPERSPACE, EXPVALUE, EXPWHITEBALANCE, EXTNAMES, FACETERDEVNORMAL, FACETERDEVSURFACE, FACETERGRIDRATIO, FACETERMAXEDGELENGTH, FACETERMAXGRID, FACETERMESHTYPE, FACETERMINUGRID, FACETERMINVGRID, FACETERPRIMITIVEMODE, FACETERSMOOTHLEV, FACETRATIO, FACETRES, FIELDDISPLAY, FIELDEVAL, FILEDIA, FILETABPREVIEW, FILETABTHUMBHOVER, FILLETPOLYARC, FILLETRAD, FILLETRAD3D, FILLMODE, FONTALT, FONTMAP, FRAME, FRAMESELECTION, FULLPLOTPATH, GALLERYVIEW, GEOLATLONGFORMAT, GEOMARKERVISIBILITY, GEOMARKPOSITIONSIZE, GFANG, GFCLR1, GFCLR2, GFCLRLUM, GFCLRSTATE, GFNAME, GFSHIFT, GLOBALOPACITY, GRIDDISPLAY, GRIDMAJOR, GRIDMODE, GRIDSTYLE, GRIDUNIT, GRIPBLOCK, GRIPCOLOR, GRIPCONTOUR, GRIPDYNCOLOR, GRIPHOT, GRIPHOVER, GRIPMULTIFUNCTIONAL, GRIPOBJLIMIT, GRIPS, GRIPSIZE, GRIPSUBOBJMODE, GRIPTIPS, GROUPDISPLAYMODE, GTAUTO, GTDEFAULT, GTLOCATION, HALOGAP, HELPPREFIX, HIDETEXT, HIDEXREFSCALES, HIGHLIGHT, HIGHLIGHTSMOOTHING, HPANG, HPANNOTATIVE, HPASSOC, HPBACKGROUNDCOLOR, HPBOUND, HPBOUNDRETAIN, HPCOLOR, HPDLGMODE, HPDOUBLE, HPDRAWORDER, HPGAPTOL, HPINHERIT, HPISLANDDETECTION, HPISLANDDETECTIONMODE, HPLAYER, HPLINETYPE, HPMAXAREAS, HPMAXLINES, HPNAME, HPOBJWARNING, HPORIGIN, HPORIGINMODE, HPORIGINSTOREASDEFAULT, HPQUICKPREVIEW, HPQUICKPREVTIMEOUT, HPSCALE, HPSEPARATE, HPSPACE, HPTRANSPARENCY, HYPERLINKBASE, IBLENVIRONMENT, IMAGEFRAME, IMAGEHLT, IMPLIEDFACE, INDEXCTL, INETLOCATION, INPUTHISTORYMODE, INPUTSEARCHDELAY, INSBASE, INSNAME, INSUNITS, INSUNITSDEFSOURCE, INSUNITSDEFTARGET, INTELLIGENTUPDATE, INTERFERECOLOR, INTERFEREOBJVS, INTERFEREVPVS, INTERSECTIONCOLOR, INTERSECTIONDISPLAY, ISAVEBAK, ISAVEPERCENT, ISOLINES, LARGEOBJECTSUPPORT, LASTPOINT, LATITUDE, LAYERDLGMODE, LAYEREVAL, LAYEREVALCTL, LAYERFILTERALERT, LAYERNOTIFY, LAYEROVERRIDEHIGHLIGHT, LAYLOCKFADECTL, LAYOUTCREATEVIEWPORT, LAYOUTREGENCTL, LAYOUTTAB, LEGACYCODESEARCH, LEGACYCTRLPICK, LENSLENGTH, LIGHTGLYPHDISPLAY, LIGHTINGUNITS, LIGHTSINBLOCKS, LIMCHECK, LIMMAX, LIMMIN, LINEFADING, LINEFADINGLEVEL, LOCKUI, LOFTANG1, LOFTANG2, LOFTMAG1, LOFTMAG2, LOFTNORMALS, LOFTPARAM, LOGFILEMODE, LOGFILEPATH, LONGITUDE, LTGAPSELECTION, LTSCALE, LUNITS, LUPREC, LWDEFAULT, LWDISPLAY, LWUNITS, MAXACTVP, MAXSORT, MBUTTONPAN, MEASUREINIT, MEASUREMENT, MENUBAR, MENUCTL, MENUECHO, MESHTYPE, MIRRHATCH, MIRRTEXT, MLEADERSCALE, MODEMACRO, MSLTSCALE, MSOLESCALE, MTEXTAUTOSTACK, MTEXTCOLUMN, MTEXTDETECTSPACE, MTEXTED, MTEXTFIXED, MTEXTTOOLBAR, MTJIGSTRING, MVIEWPREVIEW, NAVBARDISPLAY, NAVSWHEELMODE, NAVSWHEELOPACITYBIG, NAVSWHEELOPACITYMINI, NAVSWHEELSIZEBIG, NAVSWHEELSIZEMINI, NAVVCUBEDISPLAY, NAVVCUBELOCATION, NAVVCUBEOPACITY, NAVVCUBEORIENT, NAVVCUBESIZE, NOMUTT, NORTHDIRECTION, OBJECTISOLATIONMODE, OBSCUREDCOLOR, OBSCUREDLTYPE, OFFSETDIST, OFFSETGAPTYPE, OLEFRAME, OLEHIDE, OLEQUALITY, OLESTARTUP, ORBITAUTOTARGET, ORTHOMODE, OSMODE, OSNAPCOORD, OSNAPHATCH, OSNAPZ, OSOPTIONS, PALETTEOPAQUE, PAPERUPDATE, PARAMETERCOPYMODE, PDFFRAME, PDFIMPORTFILTER, PDFIMPORTIMAGEPATH, PDFIMPORTLAYERS, PDFIMPORTMODE, PDFOSNAP, PDFSHX, PDMODE, PDSIZE, PEDITACCEPT, PELLIPSE, PERSPECTIVE, PERSPECTIVECLIP, PICKADD, PICKAUTO, PICKBOX, PICKDRAG, PICKFIRST, PICKSTYLE, PLINECONVERTMODE, PLINEGCENMAX, PLINEGEN, PLINEREVERSEWIDTHS, PLINETYPE, PLINEWID, PLOTOFFSET, PLOTROTMODE, PLOTTRANSPARENCYOVERRIDE, PLQUIET, POINTCLOUD2DVSDISPLAY, POINTCLOUDAUTOUPDATE, POINTCLOUDBOUNDARY, POINTCLOUDCACHESIZE, POINTCLOUDCLIPFRAME, POINTCLOUDDENSITY, POINTCLOUDLIGHTING, POINTCLOUDLIGHTSOURCE, POINTCLOUDLOD, POINTCLOUDPOINTMAX, POINTCLOUDPOINTMAXLEGACY, POINTCLOUDPOINTSIZE, POINTCLOUDRTDENSITY, POINTCLOUDSHADING, POINTCLOUDVISRETAIN, POLARADDANG, POLARANG, POLARDIST, POLARMODE, POLYSIDES, PRESELECTIONEFFECT, PREVIEWCREATIONTRANSPARENCY, PREVIEWDELAY, PREVIEWFILTER, PREVIEWTYPE, PROJECTNAME, PROJMODE, PROPERTYPREVIEW, PROPOBJLIMIT, PROPPREVTIMEOUT, PROXYGRAPHICS, PROXYNOTICE, PROXYSHOW, PSLTSCALE, PSOLHEIGHT, PSOLWIDTH, PSPROLOG, PSQUALITY, PSTYLEPOLICY, PSVPSCALE, PUBLISHALLSHEETS, PUBLISHCOLLATE, PUBLISHHATCH, PUCSBASE, QPLOCATION, QPMODE, QTEXTMODE, QVDRAWINGPIN, QVLAYOUTPIN, RASTERDPI, RASTERPERCENT, RASTERTHRESHOLD, REBUILD2DCV, REBUILD2DDEGREE, REBUILD2DOPTION, REBUILDDEGREEU, REBUILDDEGREEV, REBUILDOPTIONS, REBUILDU, REBUILDV, RECOVERAUTO, RECOVERYMODE, REFPATHTYPE, REGENMODE, REMEMBERFOLDERS, RENDERLEVEL, RENDERLIGHTCALC, RENDERTARGET, RENDERTIME, RENDERUSERLIGHTS, REPORTERROR, REVCLOUDCREATEMODE, REVCLOUDGRIPS, RIBBONBGLOAD, RIBBONCONTEXTSELLIM, RIBBONDOCKEDHEIGHT, RIBBONICONRESIZE, RIBBONSELECTMODE, ROLLOVEROPACITY, ROLLOVERTIPS, RTDISPLAY, SAVEFIDELITY, SAVEFILEPATH, SAVETIME, SECTIONOFFSETINC, SECTIONTHICKNESSINC, SECURELOAD, SECUREREMOTEACCESS, SELECTIONANNODISPLAY, SELECTIONAREA, SELECTIONAREAOPACITY, SELECTIONCYCLING, SELECTIONEFFECT, SELECTIONEFFECTCOLOR, SELECTIONOFFSCREEN, SELECTIONPREVIEW, SELECTIONPREVIEWLIMIT, SELECTSIMILARMODE, SETBYLAYERMODE, SHADEDGE, SHADEDIF, SHADOWPLANELOCATION, SHAREVIEWPROPERTIES, SHAREVIEWTYPE, SHORTCUTMENU, SHORTCUTMENUDURATION, SHOWHIST, SHOWLAYERUSAGE, SHOWMOTIONPIN, SHOWPAGESETUPFORNEWLAYOUTS, SHPNAME, SIGWARN, SKETCHINC, SKPOLY, SKTOLERANCE, SKYSTATUS, SMOOTHMESHCONVERT, SMOOTHMESHGRID, SMOOTHMESHMAXFACE, SMOOTHMESHMAXLEV, SNAPANG, SNAPBASE, SNAPGRIDLEGACY, SNAPISOPAIR, SNAPMODE, SNAPSTYL, SNAPTYPE, SNAPUNIT, SOLIDCHECK, SOLIDHIST, SORTENTS, SORTORDER, SPLDEGREE, SPLFRAME, SPLINESEGS, SPLINETYPE, SPLKNOTS, SPLMETHOD, SPLPERIODIC, SSLOCATE, SSMAUTOOPEN, SSMPOLLTIME, SSMSHEETSTATUS, STANDARDSVIOLATION, STARTMODE, STARTUP, STATUSBAR, STEPSIZE, STEPSPERSEC, SUBOBJSELECTIONMODE, SUNSTATUS, SUPPRESSALERTS, SURFACEASSOCIATIVITY, SURFACEASSOCIATIVITYDRAG, SURFACEAUTOTRIM, SURFACEMODELINGMODE, SURFOFFSETCONNECT, SURFTAB1, SURFTAB2, SURFTRIMAUTOEXTEND, SURFTRIMPROJECTION, SURFTYPE, SURFU, SURFV, SYSMON, TABLEINDICATOR, TABLETOOLBAR, TABMODE, TBSHOWSHORTCUTS, TEMPOVERRIDES, TEXTALIGNMODE, TEXTALIGNSPACING, TEXTALLCAPS, TEXTAUTOCORRECTCAPS, TEXTED, TEXTEDITMODE, TEXTEVAL, TEXTFILL, TEXTOUTPUTFILEFORMAT, TEXTQLTY, TEXTSIZE, TEXTSTYLE, THICKNESS, THUMBSAVE, THUMBSIZE, THUMBSIZE2D, TILEMODE, TIMEZONE, TOOLTIPMERGE, TOOLTIPS, TOOLTIPSIZE, TOOLTIPTRANSPARENCY, TOUCHMODE, TRACKPATH, TRANSPARENCYDISPLAY, TRAYICONS, TRAYNOTIFY, TRAYTIMEOUT, TREEDEPTH, TREEMAX, TRIMMODE, TRUSTEDDOMAINS, TRUSTEDPATHS, TSPACEFAC, TSPACETYPE, TSTACKALIGN, TSTACKSIZE, UCS2DDISPLAYSETTING, UCS3DPARADISPLAYSETTING, UCS3DPERPDISPLAYSETTING, UCSAXISANG, UCSBASE, UCSDETECT, UCSFOLLOW, UCSICON, UCSORTHO, UCSSELECTMODE, UCSVIEW, UCSVP, UNITMODE, UOSNAP, UPDATETHUMBNAIL, VIEWBACKSTATUS, VIEWFWDSTATUS, VIEWUPDATEAUTO, VISRETAIN, VISRETAINMODE, VPCONTROL, VPLAYEROVERRIDESMODE, VPROTATEASSOC, VSACURVATUREHIGH, VSACURVATURELOW, VSACURVATURETYPE, VSADRAFTANGLEHIGH, VSADRAFTANGLELOW, VSAZEBRACOLOR1, VSAZEBRACOLOR2, VSAZEBRADIRECTION, VSAZEBRASIZE, VSAZEBRATYPE, VSBACKGROUNDS, VSEDGECOLOR, VSEDGEJITTER, VSEDGELEX, VSEDGEOVERHANG, VSEDGES, VSEDGESMOOTH, VSFACECOLORMODE, VSFACEHIGHLIGHT, VSFACEOPACITY, VSFACESTYLE, VSHALOGAP, VSHIDEPRECISION, VSINTERSECTIONCOLOR, VSINTERSECTIONEDGES, VSINTERSECTIONLTYPE, VSISOONTOP, VSLIGHTINGQUALITY, VSMATERIALMODE, VSMONOCOLOR, VSOBSCUREDCOLOR, VSOBSCUREDEDGES, VSOBSCUREDLTYPE, VSOCCLUDEDCOLOR, VSOCCLUDEDEDGES, VSOCCLUDEDLTYPE, VSSHADOWS, VSSILHEDGES, VSSILHWIDTH, VTDURATION, VTENABLE, VTFPS, VTOOLMOTION, WHIPARC, WINDOWAREACOLOR, WIPEOUTFRAME, WMFBKGND, WMFFOREGND, WORKSPACELABEL, WORLDVIEW, WSAUTOSAVE, WSCURRENT, XCLIPFRAME, XDWGFADECTL, XEDIT, XFADECTL, XLOADCTL, XLOADPATH, XREFCTL, XREFLAYER, XREFNOTIFY, XREFOVERRIDE, XREFREGAPPCTL, XREFTYPE, ZOOMFACTOR, ZOOMWHEEL
Sets the value. Can be text or number.