Hello,
This is because Rithmic supports Market By Order (MBO). With the MBO feature enabled you are able to see individual resting orders in the DOM. If you open your DOM Preferences (gear icon) and go to the Bid/Ask tab you can enable or disable the MBO feature, you can also set a minimum order size to display as well as add order size text.
You can find more information on this feature in our What's New in Beta 2 Guide here
https://www.motivewave.com/guides/whats_new_version_6_beta2.pdf
Thank you.