Hello! Have you ever made a trade and thought “oh man, I overpriced this sucker cause no one’s showing interest!” Or “oh CRAP I way underpriced this, I need to increase the amount ASAP.”
We’ve all been there.
So instead of having the issue of cancelling the trade and setting it up again, including re-adding all the items or lions, wouldn’t it just be easier to have an ‘edit trade’ button on top of the cancel trade button? Please tell me what you think!

Edit 1 (courtesy of 🏳️‍⚧️Sakasu🏳️‍🌈[g1 prisma] #256269):
The trade would be unable to be edited if an offer is made on it.
Edit 2 (courtesy of ⚜️Zuri⚜️ #247464):
The edit should only revolve around currency, no lions or items shall be added or removed as to stave off scams.
Edit 3: (my own edit) The trade edit may also include description changes (ex: adding 'only taking offers over 10 GB in worth' once posted)
Edit 4: (courtesy of Opti (G1 PECORA RLC KING) #23964: the description edit may be changed whenever, but must have a time stamp on it. Like a post edit on discussion boards.

Edit 5: (courtesy of ★ Zephyr! ★ [They/Them] #365745):
To streamline the last five edits into a simpler mechanic, the offers on the original trade would be automatically declined. A game message would be sent to the players that the trade was edited. A time stamp of the edit would be placed at the bottom of the text.