I believe the "Place on Workplane" tool is on the Modify menu.
If you go to the "Tools / Customizeâ€”â€ºOptions" page, select the "1024x768del_pre" Workspace, then click on the "Load From" button, the menus and toolbars will be set up like they were in previous versions. "Place on Workplane" will be in the Format menu.
Designer, Deluxe, (Professional, Expert, Basic), Platinum
Windows 10 Pro (1803), 64-bit