Improvements in the Channel manager GUI

[narayan]

(Assuming that the Channel Manager GUI is part of KMP, and not borrowed from the WDM driver.)

1. Make Channel Manager window modeless, so that we can surf through various channels in the main window, and then add them to the list in the Channel Manager.

2. While adding, the user is allowed to enter comma-separated values. But for large number of channels, this is tedious work. Instead, allow user to specify a range of channels (such as 25-220). The Channel manager should insert all the channels.

3. Allow the user to export (save) this list, and later import it. This will allow him to set up the same list on another PC.

[narayan]

4. Allow use to select one or more channels in the Channel Manager list, and then drag-n-drop (this will be much easier than selecting one channel at a time and then using the up/down arrows multiple times).

[narayan]

5. It would be great if the columns can be sorted (by clicking on the column-headers). That way, the users would be able to quickly locate a given channel by its number, name, etc.

6. Let the user edit the channels' names by just clicking on the list and pressing F2 (or slow-double-cliking). Currently we have to edit the name in a single box.