@andrew-b Hello,
I don't believe there's a straight forward way to do this if you have a custom sequesnce that is not an addition or a multiplier of the previous size unless someone else here on the forum can lead us to a simple answer. However, to do this, you will probably need to place a variable in the lot size of the trade, and after that do the following in the screenshot for the amount of number of trades you want:

That's how I would approach this. Good Luck 





