[Lazarus] suggestion about source editor's pagecontrol

[FreeMan]

fpc r30892 & lazarus r49126 osx qtx64 -dEnableUTF8RTL

1-)Is it possible cancel focus change via wheel? 'cos on mac touchpad, 
double finder move mean scroll to x or y direction.
2-)page tabs moveing sometimes unwanted style. I could not find yet how 
to, which key combination or etc. some times click to tab for activate 
it but, change position (pageindex) change.
3-)Click lock 2-3 pagetab, then if try open new file (tab) IDE open new 
source editor
regards