how to decrease lot size in grid positions?

[pezhman491]

Hello everyone
im using Grid to open new orders when the EA finds a trend. but i want to decrease the lot size after 3rd position. in other words i want to open a position with 1 lot, then 3 positions with in grid with 1 lot and next position would be 0.9 lot and after that with 0.8 lot and so on till 0.1 lot. i really confused how can i change and arrange blocks to reach this idea?
please give me some advises
Best Regards

[jstap]

A little different if using instant trades but the principles are the same: https://fxdreema.com/shared/k4hNdUfkc

[pezhman491]

@jstap it was really helpful
appreciate that