Grouping and locking objects
Add an ability to group/ungroup objects so they can be selected and manipulated together.
Add an ability to lock/unlock objects and groups so they won't be selected until you command "Unlock all".
Same as in most vector drawing programs since 1990x!!
mSnus shared this idea
It appears that the group/ungroup option is only available for lines, arrows and shapes. It would be very helpful to allow grouping/ungrouping text markup as well (highlighting, etc.).