From the blog "Emby Blog"
Emby Server 4.7.6 - Multi-Select & Right to Left Languages
This is the latest point release of Emby Server containing a couple new features as well as fixes for identified issues.
Support shift to multi-select
Newly added to 4.7.6 is the ability to multi-select. Instead of having to select each and every media item you can now select the first media item as shown below:
then holding the shift key on your keyboard, select the top-left circle with your mouse on your e