Press F6 to open the Docuplate manager, and Click the docuplate to modify (i.e. usually the choice is the default docuplate for that chart section).

With the docuplate to be edited in view, Right-click just underneath the last field in the docuplate (see screen-shot below). Positioning your cursor can be a little tricky because the right-click has to be in a location just after the last close bracket.

In the right-click menu, Click Manage Sub Items as seen below. (If you see a different menu when you right-click, move your mouse down just a little bit and try again.)

In the SMARText Quick Access, all the fields in the docuplate should be displayed. To hide one, Click its Check-box  to UN-check it. This doesn't actually remove the field, but has the same functional purpose.

NOTE: To reactivate the hidden field, simply re-check the field's check-box.

With ROS and Physical Un-Checked, they are no longer visible in the docuplate.