# How to Handle Waypoint Lists via MQTT in URScript on Polyscope 5.11?

**URL:** <https://forum.universal-robots.com/t/how-to-handle-waypoint-lists-via-mqtt-in-urscript-on-polyscope-5-11/40697>\
**Category:** URScript\
**Created:** [July 29, 2025, 1:32pm UTC](https://forum.universal-robots.com/t/how-to-handle-waypoint-lists-via-mqtt-in-urscript-on-polyscope-5-11/40697 "2025-07-29T13:32:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![farzaneh.gerami](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@farzaneh.gerami](https://forum.universal-robots.com/u/farzaneh.gerami)\
**Post date:** [July 29, 2025, 1:32pm UTC](https://forum.universal-robots.com/t/how-to-handle-waypoint-lists-via-mqtt-in-urscript-on-polyscope-5-11/40697/1 "2025-07-29T13:32:55Z")

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Hello,  
I’m trying to publish a list of positions via MQTT that I previously received from the robot. On the robot side, I want to subscribe to this list and use the positions as waypoints.  
I know this might be straightforward with URScript in Polyscope version 5.15 or later, as it supports nested lists and matrices. However, I’m using Polyscope 5.11, which lacks support for these data structures.  
Does anyone have a workaround or solution for this limitation?