improved multi-text selection #1651
Description
Describe the feature
#1645 and #1650 add the ability to select multiple Text elements. but the implementation is a bit minimalist, as it only supports a "drag down" extended selection across text elements, with Shift / Meta supporting a separate double/triple click extension of the selection.
It would also be good if Shift-click extended including all text elements between the last selected one and the new one, so you can start the selection at the top, and then shift-click at the bottom and just get everything in between.
Not hard, just takes time..