convert subset editor modal to tab
Is your feature request related to a problem? Please describe.
When the subset editor is launched from the cube viewer it opens as a modal. This is mostly OK as a developer when just checking something quickly. However when checking the same dimension multiple times it can become really annoying needing to reopen the editor then dismiss it to get back to what you were doing or else find the same hierarchy in the object explorer and open the subset editor from there as a tab. There should be an option to simply convert the modal to a tab and save the user the extra work.
Describe the solution you'd like
Subset editor modal opened from a view needs a toolbar button "convert to tab". This would close the modal and open a new subset editor tab with the same selection as at the moment the user clicked the button.