# UDT definition: Lockable? Reusable? **URL:** \ **Category:** Ignition\ **Created:** [September 29, 2016, 11:50am UTC](https://forum.inductiveautomation.com/t/udt-definition-lockable-reusable/12186 "2016-09-29T11:50:26Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![xasga](https://avatars.discourse-cdn.com/v4/letter/x/838e76/32.png) [@xasga](https://forum.inductiveautomation.com/u/xasga)\ **Post date:** [September 29, 2016, 11:50am UTC](https://forum.inductiveautomation.com/t/udt-definition-lockable-reusable/12186/1 "2016-09-29T11:50:26Z")
Can the definition of a UDT be locked, so that it cannot be changed or deleted? Can the definition of a UDT be exported, so that it can be imported for use on a new application? I looked for the answers in the user manual; apologies if I missed them. ---
**Author:** ![Amarth](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/amarth/32/3313_2.png) [@Amarth](https://forum.inductiveautomation.com/u/Amarth)\ **Post date:** [September 29, 2016, 2:27pm UTC](https://forum.inductiveautomation.com/t/udt-definition-lockable-reusable/12186/2 "2016-09-29T14:27:19Z")
Hello, I don’t think that you can lock the structure but you should be able to export your UDT by right clicking on it and select the “Export” menu. It’ll export your UDT as an XML file, re-usable for another application. ---
**Author:** ![xasga](https://avatars.discourse-cdn.com/v4/letter/x/838e76/32.png) [@xasga](https://forum.inductiveautomation.com/u/xasga)\ **Post date:** [September 29, 2016, 3:13pm UTC](https://forum.inductiveautomation.com/t/udt-definition-lockable-reusable/12186/3 "2016-09-29T15:13:31Z")
Yes, I see the Export Tags option on the right-click menu. I wouldn’t have tried it, if you hadn’t said I should. I never thought of a UDT definition as a tag. There is a page in the manual about exporting tags, but it doesn’t mention that the UDT definition can be exported. Anyway, it works, and that’s a big help for our intended use.