How to Apply Electric Field and Membrane Voltage Simultaneously in Membrane Protein System?

GROMACS version:2021.3
GROMACS modification: No
I’m trying to simulation a membrance protein system. In the simulation, I have already added a electric field through the command "electric-field-z = 1 300 0 0 ". In the meanwhile, I also want to add another electric field act as a membrane voltage. Can I achieve this by another command “electric-field-z = 0.07 0 0 0”?
Thank you.

As far as I know, with the option ‘electric-field-z’ you can specify an electric field that optionally can be alternating and pulsed. But maybe other know more.
You can also have an extra look at the manual, to see if you find more info: Electric fields — GROMACS 2022 documentation

Best regards

Thank you very much, I will try it.