This task is about exploring what could be done to make it clear to people that the Reply tool does not currently  support mutli-line templates and tables.
In T241388#5830983, we shared the assumptions we'd made about the Reply tool's support, or lack thereof, for multi-line templates and tables:
- Contributors will not expect the new replying workflow to support templates that contain line breaks considering the existing, full talk page editing, workflow does not support this functionality either.
- If contributors do attempt to use templates that contain line breaks, we are assuming the real-time preview (T238177) will communicate to them this functionality is not [yet] supported.
This task is about coming up with a way to make it clear to people that the Reply tool will not be able to support multi-line templates and tables until the new syntax T230683 is proposing is implemented.
- T230683: introducing new syntax for multiline list items / talk page comments will "unlock" support for multi-line templates and tables within indented replies.