The following will toggle the crop on and off when you are in a perspective view.   SetPref(127, Not GetPref(127));   Copy that line, go to Tool:Plugins:Plugin Manager.  Click the New button and choose Menu Command. Click Edit Script and paste in the line above. Click OK. Click Close.   Edit your workspace to include the new command.   Let us know if you need more help.
    • Like
    4