Proloquo only comes with one grid size; it cannot be changed. 

To understand this further, check out the resource Why Does Proloquo Have A Fixed Grid Size.

Proloquo makes remote editing easy by creating  “teams” for the user! For more information, check out this resource on Managing a Team in Proloquo. 

There is not an option to consistently hide vocabulary but there is Focus Mode where you can draw attention to target vocabulary! Check out the Focus Mode in Proloquo resource.