Yes you can. Here is an example: Lets say that on the next buy signal you want to add 0.01 lots. You would change “Amount to add on addition” to 0.01. You will also need to change “Maximum position amount” to 0.04. Then if you have a sell signal you could decide you want to reduce the size of your lot by 0.01. So then you would change the “Amount to close on reduction” to 0.01.