Multicurrency trader where pairs can be toggled on and off

[Daverazon]

I want to create a multicurrency ea with different strategies for different currency pairs. Please what function do I use so that once I load the ea on the chart I can choose which of the available pairs to turn on for trading just like the "weekdays" filter where you can choose from the inputs which day to trade.
So in the project I shared is just for illustration, how should I achieve my desired result?
I previously tried that "toggle blocks" function but when I loaded the ea I didn't see any input menu to choose which pairs get turned on or off.

https://fxdreema.com/shared/Sa3owdAWb

[l'andorrà]

@daverazon You can create as many different boolen Constants as planned charts. Then each one will be selectable by a true/false input parameter when moved on the chart. Internally you will have to link each Constants to the appropriate symbol, of course.