Custom Page Help

I have been trying to make my own custom page but for some reason I just can't figure it all out, I have read the help documents and all that. Can anyone help me out? maybe make a custom page and upload it so I can use it and examine it to get how it works, etc... Thank you.

There's already a dozen examples distributed with NSIS under Examples\InstallOptions, and a Modern UI one under Examples\Modern UI\InstallOptions.nsi
Even the Uninstall/Reinstall page found in the NSIS installer is in Examples\makensis.ini

-Stu

Oh I didn't even look in the Examples/Modern UI folder, Thank you.