Ability to change lot sizes on DOM and Order tab

We don't always only want 1, 3, 5, 10, or 15 lots. We sometimes need 2, 4, 6, 7, 8, etc lots and there is no way to change it as of now. For example, I'm currently only trading 2 lots at a time and I would have to double click on the limit order I want, but with /NQ, it can move so fast that the 2nd order wouldn't get clicked on time to get filled. This setting upgrade would be so helpful. Thank you!