Trying to add ordercomment() to a trade after partial close??

OrderComment() returns the existing comment on an Order . . . I don't believe you can change the comment added at OrderSend time

ok thanks/

1. You can't change the comment
2. Not a good idea to use them post send anyway as brokers can change comments, including complete replacement.

That really sucks. I need a place to store order data in string format and the comment field seems to be a good place to use, except a partial close will overwrite my original comment. Any plans to add this feature to MT4?

That's called a file.