[suggestion] Can the button icon/text be shortened, as an option

[PhilipOakley]

Great tool!
I see the default tool bar button [ID Copy Message ID] takes up quite a lot of toolbar space.

Is it easy to add an option to adjust the button width?

Maybe
(a) super short with just the ID logo,
(b) short form: logo + "Msg-ID",
(c) user supplier: logo + user text (12 char limit?).
Plus the current default.

The (c) option could be pseudo internationalisation by the back door..

Many thanks.