When I right click Region #1 the context menu has Go To, Go to End, Select Region, Rename and Delete. There is no option to Select Events to End. But, If I right click in the timeline itself I do see Select Events to End.
In your image it shows what appears to be each of the regions highlighting separately. Al that I have been able to do is to get the entire track to highlight from beginning to end, including the spaces between regions.
Even if I “Select All” nothing happens….
My number is 213 four hundred 6397
jay