This should not be hard!

I every other software package you click on picture, hold the shift key down Then click on the other pictures.. Nope it will only select one.. Tried the control key rather then the shift key Nope.. Tried to click and drag through the pictures I want selected.. Nope.. Saw something on picking the link from the layer panel. OK I can select two or more layers holding down the control key and hit the link... But it gives me nothing useful..

I can't resize the layers in unison.
I can't move the items in unison.
I can't copy and paste the unison.
I can though align the pictures with left/ right, top/bottom etc.
If I click on one item, then I still am only working on that one layer. It seems to forget it is in a group.

So what am I missing here?