This page asserts that you can "convert issues to sub-tasks (and vice versa)", but it does not explain how to do it

[Jim Scott]

This question is in reference to Atlassian Documentation: Configuring sub-tasks

This page asserts that you can "convert issues to sub-tasks (and vice versa)", but it does not explain how to do it, or point to a page where it is explained. Where can I find how to do it?

[Nic Brough -Adaptavist-]

Hmm, yes, it should really have "from the issue action menu" added to the sentence.