#94 Toolbar to use drop-down boxes?

[fadingdust]

I notice that the toolbar is grouped. An alternative might be to do a Photoshop-style drop-down for a set group. E.g, for the 5 'zoom' buttons, have only one button. It defaults to zoom in, and upon click-and-hold, it will display an options box, to select an another default button, like, zoom-to-page.

I think this is what GtkMenuToolButton provides, like an HTML choose-option ("combo") box ?