# Accessing custom parameter of a UDT instance inside a popup window **URL:** \ **Category:** Ignition\ **Created:** [January 8, 2022, 5:34am UTC](https://forum.inductiveautomation.com/t/accessing-custom-parameter-of-a-udt-instance-inside-a-popup-window/54795 "2022-01-08T05:34:47Z")\ **Posts on this page:** 1\ **Showing post:** 38
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [January 28, 2022, 4:12pm UTC](https://forum.inductiveautomation.com/t/accessing-custom-parameter-of-a-udt-instance-inside-a-popup-window/54795/38 "2022-01-28T16:12:35Z")
What version of Ignition are you using? > [@Deleted Custom Parameters Still Appear in Parameter List (Perspective)](https://forum.inductiveautomation.com/t/deleted-custom-parameters-still-appear-in-parameter-list-perspective/55039/7): > > Deleting a param from a view through the property editor will no longer orphan its propConfig in the view json. This prevents the deleted param from showing up in the param suggestions menu within the property config (for example, when using an Embedded view component). Previously orphaned propConfigs will remain, however they may be cleaned up manually either through editing the view json or by adding the param back and then deleting it once again. I just verified this exact behavior (albeit… There's a bug that was fixed. --- _[View the full topic](https://forum.inductiveautomation.com/t/accessing-custom-parameter-of-a-udt-instance-inside-a-popup-window/54795)._