When Adding Offer or Request is it possible to only check the "Trade" Column (and not check buy)?

I'm specifically talking about when you are adding a card and you click the condition or type and then both "Trade" and "Buy" are automatically checked.

Or to just set a user preference to have "Buy" disabled?

yea its possible you can check and uncheck trade and buy by clicking on them

I know I can click them. I don't want it to ever auto check "buy" 

This is a feature I wish we have as well. Imagine adding one thousand cards and having to click to uncheck Buy every single time. Just make the form or XML save our preference. Saving millions of clicks across the user base would be nice.