# Issue with UDT creation **URL:** \ **Category:** Ignition Early Access\ **Tags:** ignition80, perspective\ **Created:** [May 5, 2020, 10:44am UTC](https://forum.inductiveautomation.com/t/issue-with-udt-creation/34437 "2020-05-05T10:44:40Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![luc.martin](https://avatars.discourse-cdn.com/v4/letter/l/77aa72/32.png) [@luc.martin](https://forum.inductiveautomation.com/u/luc.martin)\ **Post date:** [May 5, 2020, 10:44am UTC](https://forum.inductiveautomation.com/t/issue-with-udt-creation/34437/1 "2020-05-05T10:44:40Z")
Issues with udt tag creation. When I try to add a udt in an udt the list of available udts doesn’t vertically scroll so when the tag is not available on screen I have to select an other one then have to change it, but the list to change is too small, the list can scrolls but i think it can be easier if the list was fully width an with more items in the list. ![2020-05-05_06h34_28](https://us1.discourse-cdn.com/inductiveautomation/original/2X/7/7bfedde048622b40a5a1fde26715b528e7e5f497.gif) ---
**Author:** ![kaushik.shah](https://avatars.discourse-cdn.com/v4/letter/k/34f0e0/32.png) [@kaushik.shah](https://forum.inductiveautomation.com/u/kaushik.shah)\ **Post date:** [May 5, 2020, 12:14pm UTC](https://forum.inductiveautomation.com/t/issue-with-udt-creation/34437/2 "2020-05-05T12:14:45Z")
If you want to Edit the Exsititng UDT instance, you can directly click on the Parent Data type Dropdown (You don’t have to select one from the UDT Instance button) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/5/5eee0dd43352206f8dcbfcfac089ce070a1bae2b.png) ---
**Author:** ![luc.martin](https://avatars.discourse-cdn.com/v4/letter/l/77aa72/32.png) [@luc.martin](https://forum.inductiveautomation.com/u/luc.martin)\ **Post date:** [May 5, 2020, 12:18pm UTC](https://forum.inductiveautomation.com/t/issue-with-udt-creation/34437/3 "2020-05-05T12:18:45Z")
I don’t want to edit, I want to add new one… ---
**Author:** ![luc.martin](https://avatars.discourse-cdn.com/v4/letter/l/77aa72/32.png) [@luc.martin](https://forum.inductiveautomation.com/u/luc.martin)\ **Post date:** [May 14, 2020, 1:33pm UTC](https://forum.inductiveautomation.com/t/issue-with-udt-creation/34437/4 "2020-05-14T13:33:51Z")
The list of available UDT don’t vertically scroll when the number of UDT is more then height of screen, it’s really bad because we have a lot of UDT and I always have to select a random UDT then I have to modify it to get the good one. Also, when you want to modify the parent data type the list is very small, I know that the list scrolls but its not ergonomic…