Customising in run-time, it seems that merged portions of the menus cannot be manipulated (I am guessing this is intentional and not supported yet), however it is possible to insert new command links within currently merged portions of the menu and an issue lies here - customly inserted command links into merged menu portions do not retain their inserted position if afterwards the menu is merged in such a way that the inserted position is not valid anymore (eg insert at end of long merged menu, un merge menu to be shorter, then merge back - after merging back, the command link is no longer in its originally placed position during customisation). Worth noting Visual Studio does seem to handle this situation correctly though.
Also, while it is not possible to directly manipulate merged portions, it appears that merged command links can still be modified through the customiser dialog's 'Modify Selection' button (which offer some very nice features for run-time!) particularly deletion. In this way it is possible to delete a merged command link which stays deleted until the next time it is merged in again - confusing behaviour.
It would be nice if merging and customisation could work better together - ideally, supporting full customisation of merged sections like Visual studio.
Also, while it is not possible to directly manipulate merged portions, it appears that merged command links can still be modified through the customiser dialog's 'Modify Selection' button (which offer some very nice features for run-time!) particularly deletion. In this way it is possible to delete a merged command link which stays deleted until the next time it is merged in again - confusing behaviour.
It would be nice if merging and customisation could work better together - ideally, supporting full customisation of merged sections like Visual studio.
