RadioButton problem

I use a SectionGroup which has 3 options
But when I use:

Function .onInit



StrCpy $5 ${secCachOpt}



FunctionEnd



------



Function .onSelChange

	!insertmacro StartRadioButtons $5

		!insertmacro RadioButton ${secCachOpt}

		!insertmacro RadioButton ${SecCachMed}

		!insertmacro RadioButton ${SecCachPerf}

	!insertmacro EndRadioButtons

FunctionEnd

and I click on the SectioGroup button, all 3 options get selected, I used the search but those scripts didn't work either.

And one more question, how do I set a ReadOnly flag on a custom page checkbox
I can (ofcourse) remove the checkbox, but is there a way to make it ReadOnly?

1: no idea atm

2:
use

Flags=DISABLED

in your custompage.ini for the checkbox field 🙂