You can hide fields from ever appearing in the grid view
In this example, we are going to hide the 'email' field from the Clients table.
Go to your table.
Go to Design > Form Designer
Click the link on the right that says "Edit Column Labels"
Wait for the Grid Edit view to load.
Click HideinColumn for field you want to hide.
Change the field to say "Y" or "yes" to hide it.