In Emacs, how do I use commands bound to C-s and C-q (or any key) if these keys are filtered out?

To bind C-s and C-q, use either enable-flow-control or enable-flow-control-on. For usage and implementation details, see In Emacs, how do I handle C-s and C-q being used for flow control?

To bind other keys, use keyboard-translate. For usage and details, see In Emacs, how do I swap two keys? To do this for an entire site, you should swap the keys in lisp/site-start.el.

Note: If you swap the keys for an entire site, the users will be confused by the disparity between what the documentation says and how Emacs actually behaves.

This information comes from the Emacs FAQ.

At Indiana University, to get support for personal or departmental Linux or Unix systems, see At IU, how do I get support for Linux or Unix?

Also see:

• For Emacs, where can I get documentation?
• GNU Emacs Quick Reference Guide
• Where can I find help with Emacs?
• For Emacs, where can I find information about binding keys?
• In Emacs, how are keystrokes denoted?