I recall seeing a command where a solid/polysrf/srf could be slipped under a flat surface and the flat surface would deform based on the shape of the underlying object. In effect opposite to the drape command where the solids are drawn first and then then the drape is applied - here the surface would be drawn first and the solid “slipped” under it. The “Command Help” animation - if I recall correctly - looked like a mouse was running under a carpet.
I can’t locate the command now - am I imaging this? Does it exist?