Not for the first time, I had a request this week for an option to be able to add a fixed pip value to the trade buffer options in ATM, for entries, stops and profit trails. There isn't really a need to add another field for inputs, as the same thing can be achieved by using the multiplication that's already there.
Take an instrument with a spread of 1.5, for example, and let's say you want to add a fixed 2 pips to the long trade entry buffer where a spread multiplier of 1 is normally used: the multiplier that you'd use in ATM is 2.333. You just add the pip buffer divided by the spread to the regular buffer multiplier - simple.
Here's the spreadsheet so you can do your own customer values as you please.
Yes, this is perfect for fixed spread brokers but not so for variable spreads. No problem - just enter a fix spread value in the 'Manual Spread' input of the expert properties.
My personal preference, for trade entry and management, is just to use the spread multiplier without the addition of fixed pips. However, if you like to do things differently, as is your absolute right, then I hope this solution fits your need. Feel free to throw rotten eggs in my direction if you don't like it. If I get pelted enough times, I might concede to adding a fixed pip option to ATM - anything for a happy trader, within reason :)