Way to select multiple entities and move all of them to a new layer?

I'd like to move a pile of selected entities to a new layer. Is there a way to do this all at once (instead of each of them one at a time)?

Also, I noticed that Ctrl+Z is not Undo-ing. Not sure why this could be. I can't select and hit delete to delete an entity either (have to go to the menu and choose "delete selected"). These are not related to the title but maybe someone could help answer these as bonus questions. ;)
thanks!

777funk wrote

I'd like to move a pile of selected entities to a new layer.

Modify -> Attributes

select entities (ctrl a for all), finish selection process, select layer from popped up dialogue box.

777funk wrote

I noticed that Ctrl+Z is not Undo-ing. Not sure why this could be. I can't select and hit delete to delete an entity

All above you mentioned, work fine for me. Any 'Num-Lock' issue? If you have more than one [Del] keys, try other one.

Telling your version of LibreCAD, will give you more useful help.