pretty ennoying & time consuming to "approach" two objects until It "touch" the other (anchoring one),
this is not aligning top or bases which doesn't do that
should have a selection of 2 objects (blocking one like now select the two, then click the one to anchor)
QUESTION :
new feature could be, then to right click on second one, with a box pop choice, to get a chance to have It easily "touching" the first object, then to precisely "penetrate" the first
a second right click again on the second with a choice of translation dimension + or - in axis