The keyboard shortcuts are a time saver when I need to conduct repetitive activities, such as setting up new templates.
For example, I need to consider presentation flows for my content layout. I stage Object Hyperlinking as part of my template:
Start from end of intended slide,
Select object 1, Shift-C (to copy link)
Select object 2, Shift-L (to initiate link to)
Ctrl-V (to paste link)
Save change
(while still on object 2 selected), Shift-C (to copy link)
Select object 3, Shift-L (to initiate link to)
Ctrl-V (to paste link)
Save change
(while still on object 3 selected), Shift-C (to copy link)
Repeat
(BONUS) When I mass-select objects to duplicate, the Object hyperlinking is also copied for the new row.