Hi Rashad. Welcome to the suckless community. Please note that the hackers@ list is for submitting patches, and dev@ is for general discussion [1]. Accordingly, I am replying to dev@.
I recommend using dvtm [2] with st in order to get scrolling. Someone ought to change the FAQ. dvtm sucks considerably less than both tmux and screen. It works very well, Shift+PageUp and Shift+PageDown will scroll. If you use dvtm (or tmux or screen) for scrollback then there is no need to bother with the scrollback patch for st. Or you can use the scrollback patch for st and forget about dvtm (or tmux or screen). [1] http://suckless.org/community [2] http://www.brain-dump.org/projects/dvtm/