Mr. RMC,
In AutoCAD... I'm a "typer" vs a pick the move then do the command. But you can choose how you want to enact the command.
So, I type M or MM (bad habit from old school AutoCAD) to get into the MOVE command. I then Pick all my objects I want to move. You can type C for Crossing or W for Window or let your mouse do it by picking and moving to the left and down for Window or right and up for Crossing.
Once you have your selection, you can either pick a point and then type a number and return and it goes that way. Or, you can do the X, Y that you said you have to do two moves for. Select your objects, put in the amounts you want moved: 10',20'.... then hit enter two times. By hitting two times, AutoCAD automatically puts the first enter like itis 0,0 and the 2nd enter it puts your 10',20' in and moves it that far.
Some great commands to use for most of your commands is WPolygon or CPolygon. This allows your to cross over and through things vs straight selections like W and C do.
To find these commands, type in M and then type gibberish like sdsf then hit enter, it errors out the command and the commands below show up. Test them all out.
(Expects a point or Window/Last/Crossing/BOX/ALL/Fence/WPolygon/CPolygon/Group/Add/Remove/Multiple/Previous/Undo/AUto/SIngle/SUbobject/Object)
Hope this helps!!
Thanks, JRR!