Feature request: Shortcut to use second entry from top

[helmo]

Hi, thanks for this great tool.

Regularly I have two things to paste, such as a username and password. This is where I love having a paste buffer history.

When unsure where in the stack the item is that you want to past, then <ctrl>+<alt>+v is ideal. But when your confident it's the second item from the top... <ctrl>+<alt>+v and twice arrow down + enter to select the second item from the stack, can get a bit tedious.

Could we make a shortcut to directly do that (and maybe even include pasting it)?

E.g. <ctrl>+<alt>+b - Select -1th item from copy history stack.