> ## Documentation Index
> Fetch the complete documentation index at: https://help.arcus.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I modify an order?

From the order panel - adjust price, size, or trigger.

Order modifications that increase order size or modify price are processed as cancel-and-replace, so the modified order joins the queue at its new price level.

Order modifications that decrease order size and maintain price will maintain their price-time priority on the order book.