F11 still used for something?

Please is F11 macro still used for something? I have noticed there is some old tscript macro for it, but I haven’t figured out what it should do. I thought it would be nice to use it as a hotkey for maximizing my perform window, but then I realized it is causing some errors in textport:

/sys/local/macros/F11 (line 1 - set type = `argx(optype("$OP_ROLLOVER"),1,":")`): Tscript Expression error: Bad path argument

Please are there plans to remove this macro in the future, or would you like to give it some new meaning? Thanks.