[mythtv-users] How to change keymapping in EPG in MythTV 0.21

[limeyslim at gmx.com]

Is it possible to remap the M key in the EPG (channel select) for the P 
key without changing the global Menu = M setting in the keymap.

I have a Harmony One remote and want to be able to use the Play key to 
select the channel when the EPG is displayed. The current use of the M 
key isn't any good for my setup.

How can I change the key mapping?

Thanks

Jim