Great! ...and thanks for the comments on my toolbar hacks.From a quick look at your test, am I right in thinking that you haven't yet hooked up the spinbutton to an action? I'm still not quite sure (a) how we'd handle spinbutton actions in our toolbars, and (b) whether we'd actually need to... I guess we can just use a callback to the "value-changed" signal?AVOn 15 March 2018 at 18:49, Tavmjong Bah <tavmjong@...8...> wrote:On Thu, 2018-03-15 at 10:42 +0000, Alex Valavanis wrote:If you could share your toy application, that would be great - I'm still trying to get my head round all the options!I've uploaded the code to GitLab:Tav