I have been programming a reactor to update the dimscale to whatever the viewport is scaled to. when switching from viewport to viewport. How do I get the viewport toolbar to update itself to show something off of the list rather than just the decimal that is the scale factor? It seems to update when going into a viewport but when returning to paper space the toolbar dose not update. ?? This is what I have been doing. dsc being equivelent to the dimscale (VLA-SETVARIABLE acaddoc "PSVPSCALE" (/ 1.0 dsc)) (vlax-put-property (vlax-get-property acaddoc 'ActivePViewport) 'customScale (/ 1.0 dsc)) Thanks Matthew