Regarding the text, you have to copy the glyph itself. It seems you’re copying the name of the codepoint.
As for the repeat bar, I’m not sure I understand what you’re saying. It sounded as if you were loading the cursor with the item, in which case you have to press the mouse with the Alt button engaged. Also, you have to act on the staff that has a different meter — if you try it on a staff with the correct “global” meter, it will show on all staves.