Use many different commands on the same entities.

Perform the first edit command, selecting entities in the usual way.

When it's finished (after you've selected Do it), select a new edit command.

Right click then select Prior.

All the entities you selected before have been selected again.

Select Do it to complete the editing command.

If you want to do more editing, repeat from step two.

 

Note: When you copy.Prior selects the entities you've copied, not the original entities

Note: You can also use Prior after a Trim or Single edit command- it will select any entities you changed.