How to make keyboard shortcuts work for the Clipmenu application? I'm using Clipmenu application to manage copy and paste tasks.

It seems to me that you can use the shortcuts: cmd+1, cmd+2 to paste the copied texts, but it doesn't work though.

Let's say I copy these 4 lines in 4 times:

111111
222222
333333
444444


Then I'd like to use the shortcuts to paste every one of them. This is:

cmd + 1 (to paste '111111')
cmd + 2 (to paste '222222') 

and so on..


But if I press cmd+1 I just hear a sound and nothing happens.
Invoke clip menu first (shift+ctrl+V by default) then use cmd+number to paste that particular item.