Can you demonstrate how to use custom studies in a Thinkorswim conditional order?

Yes, and just wait till you see how simple it is. Thinkorswim has this tool they call “condition wizard”. This enables you to construct complex rules based on built in studies as well as some custom studies. No code experience is required. It’s all menu driven and very simple to do. To get the full view of this process we recommend two videos.

The first one shows how to build conditional orders, and as a bonus how to convert those back and forth between strategies:

https://www.hahn-tech.com/thinkorswim-autotrade-almost/

This second one shows the use of the conditional order’s close cousin. The Study Alert. This tool also uses the condition wizard so this video will add to your knowledge of this topic:

https://www.hahn-tech.com/thinkorswim-alert-ichimoku/