Manually remove items from existing GRF

[Andrex]

Hi, I want to upload my old Urban Renew buildings set to Bananas, but first I'd like to remove the embedded bank and transmitter sprites from it, yet I'm not sure how to accomplish this. Any suggetions on how to do that in a quick and efficient way?

[Eddi]

do you still have the original source code?

bank and transmitter sprites are probably set via an Action A, so just remove these lines and recompile. (with nforenum and grfcodec)

[Andrex]

OK, I'll try that. Initially I released them as EXE files and someone here converted them to GRF files.