Solved Help adding scrollbar to custom mono DLL menu

Im making a DLL mod menu that resembles the LGL menu because ive been seeing a lot of games I wanna mod that use DLL's, and I'm not a fan of the OnGUI look. I just want to add a scrollbar but everything I try crashes the app on launch. I wanted to do the scrollbar before I add the footer because I didn't wanna deal with the footer scrolling with the rest of the menu.

Here's what it looks like so far



Here is my c# file download
DLL menu c# file


I just need an explanation on how to correctly add a scrollbar to the menu