EA that will monitor primary magic number and close secondary magic number when the primary is closed.

On my account there are many opened XAUUSD cards with various running EA's (each one with a different magic number).

Some of the magic numbers are primary and some of the magic numbers are secondary.

Each one of the primary magic numbers has a secondary corresponding magic number (e.g. the primary magic number 1234 has the 12340 as secondary corresponding magic number). 

I need to build an EA that will monitor the open positions of each one of the primary magic numbers and when all the positions with the same primary magic number (e.g. primary magic number 1234) will be closed (manually or by other EAs) the EA will close all the open positions of the secondary corresponding magic number (e.g. the secondary corresponding magic number 12340), regardless if they are in profit or not.

In the inputs of the EA, the User will have to define all the primary magic numbers and the secondary corresponding magic number to each one of them.