[V188.8.131.52 - Windows & Mac]
When doing a Open Attachment short code and there are 2+ attachments.
Is there anyway to select the attachments with the keyboard,
I have found that you need to go back to using the mouse.
Screen capture below
TheBrain Beta 184.108.40.206, iOS V220.127.116.11, TheBrain 18.104.22.168
Windows 10 (V1709), Windows 7 SP1, OS X V10.13.1
Using The Brain since V3 (1999)