i see lots on 'repo ALL drawings' but can't repo ONLY SOME

for the life of me i can’t glean from forums, docs, and tuts how to select SOME drawings on a layer and move them in a group. i’ve tried every combo of ‘repo all drawings’ with its tool/tool properties and the drawing table with various selections, linkings, checkboxes, etc, but the correct one. what’s the trick?

i have a rough walk cycle and i want to leave the original right/left steps in place, and dup new steps into new positions so they all link up.