Need help on combining two same indicator with different options (Symbol Changer Indicator)

 
Hello,
I need help on combining two indicator which serves the same purpose (to change between symbols).
The only difference is one will read the symbols listed in Market Watch as the source and another one needed to be set manually every pair that need to be view.
I want to combine the source of Symbols into drop down with 2 options 1) Market Watch 2) Custom. Market Watch will take directly from the list, and Custom will have another space below to add the symbols needed. In addition I would also like to add drop down to timeframe selection with 3 choice 1) Off 2) All 3) Custom (with space below to add the timeframes needed). Basically both indicators are fully functional I just don't know how to combine both.
The files is attached as below. Please help me thank you.