Easier Procedure to renumber DVBT channels

[fuzzweed]

I like to renumber my channels to keep broadcasters together in the guide, rather then default DVBT channel numbers.
1) Can this be made easier by being able to directly enter channel numbers on the settings -> channels menu (and be able to tab through then), rather than bringing up a popup for each channel
2) And delete channel with del key would be useful too.

thanks.