Support modifying orders from FIX

Link to old thread: Fix Modify Order

I would like to be able to modify existing orders using FIX (ie MsgType=G).
It appears from reading the Coinbase FIX docs that the only way for me to accomplish this is to cancel my order and reissue a new order in its place.
I’d like to request that MsgType G is implemented.

Looks like this feature is in beta :slight_smile: