In the all channels view of the scene editor, the "enable/disable all channels in current fixture" buttons are active but don't do anything, as there is no "current fixture". I think it would be more useful if the tooltips became "enable/disable all channels in all fixtures" and they did just that.
Also, I think the tooltip for the "all channels" view button should say "all fixtures", like the tab it produces.
Enable/Disable all channels in all channels view
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Jano Svitok
I've fixed this after RC1 (except the tooltip). In all channels mode, the button selects all channels for all fixtures. In tabbed mode, it selects all channels for the current fixture only.