I Need Some Help With A Multiboard

I have no problem with making ans showing the multiboard how i want it but i cant figure out how to get it to change and stuff for each row as somthing happens. An Example is when someone makes a unit and i want the multiboard to show that that person now has 1 more unit. I have no clue how to make that work.

If someone could point out to me what i need to do to make it happen how i want it to, it would be greatly appreciated.

Just use the action -Set item text to change whats on the multiboard
eg
E:A unit finishes training
A:
If trained unit is owned by player 1 then
Set the item text to.........

but what if say player 6 trained a unit, how would i get the multiboard to change so that (say player 6 is on the 7 row of the multiboard) it will be row 7 that changes for player 6 and not say row 5 or 8.

Can Nobody Help me in any way with my problem. Do I have to make a bunch of variables for it or what. PLease Can someone help I really need it.

To know the Row you can try to use the number of the player (Player - Player number)