Designs for global and all editor toolbars

We want to redesign the current toolbars because in some editors such as Process Designer, they contain already too many buttons and might require even more actions to be available to the user. As the output of this jira, we should get the recommendations which buttons should be in the global toolbar in every editor, where they should be placed and where the user can find more advanced / not so common actions. We also need the recommendations for every editor separately, which buttons / actions should stay on the screen and where they should be placed.

1. Global toolbar - the buttons and actions available to the user in every editor
2. Process Designer toolbar
3. DMN Modeler
4. GDT toolbar
5. Data Modeler toolbar
6. Form Modeler toolbar
7. Test Scenarios toolbar

It might be good to also evaluate the tabs ( Overview, Editor, Source, etc. ) .. how they play their role and if the toolbars and tabs can better work together / or could be merged / ...