Yes, it seems that there is no feature to set the steps for opening the next trade on this EA.
There is too much work to be done for this purpose. As you can see in this list:
1. Find the last ticket
2. Determine the buy or sell mode
3. Find the last price by last ticket, by the mode (buy or sell)
4. Specify the step
5. Calculating the step plus the target price
6. Determine opened trade (buy or sell)
7. Modifiy the open trade
It would be simpler to create a new EA. I can only help to make simple modifications, like the previous case.
But, you may try modifying it by yourself, I can help to share a sub_program/ function (like find last ticket, find last price, etc.) for you to insert between the existing instructions.