many concerns were raised with the tick a box to select a source approach of the advanced sources table, with the concnesus being that a standard available/selected table pair would be preferred. Also requested was an unload sources button to remove currently selected sources from memory.
Now uses available/selected layout
Unload sources function added
Optinal loaded column added
Wired up use advanced sources preference
Recalls sources selected in advanced tab for each game mode.
If using advanced tab, recalls gamemode and sources used last time.