LDR

Hey,

First you can have the terminal there from the start and then have a dlg file activated when clicked. Inside the dlg file you can then do a check on a jrl entry or variable script and then if you determine that you can choose to open games the force field is open and fires the script to make the NPCs attack/become aggressive. With that you can then give the PC a jrl entry that will keep the player from getting that option again when clicking the dlg of the terminal. This means the dlg option to open the force field must have a conditional checking if the jrl entry = a number or exists. If it doesn't then you can trigger the open force field and if it does the check and the jrl entry does not match the conditional then the PC will not have that dlg option in the dlg tree.

I hope i did not confuse you. I do npt know how much you know with scripts, creating dlg and conditionals, etc.