As a follow-up to #2351991-52: Add a config entity for a configurable, topic-based help system -- assuming that issue gets in (this issue is postponed until then):
There are two fields when you are editing a Help topic: Related and Show on. Both require you currently to enter the ID of help topics that you want to mark as related. Currently you just have to type them in directly.
It would be helpful if instead you could do either one of the following:
a) An autocomplete like tags that would help you look up topic IDs.
b) A multiple valued list like entity reference; presumably then you would look them up by autocomplete on the title.
Screen shot from jibran on #2351991-52: Add a config entity for a configurable, topic-based help system to illustrate this:

Either way, the storage should remain the same in the config entity (both are stored as arrays of strings, where the strings are IDs).
Comments
Comment #1
jhodgdonThe help topic entity has been (for the time being anyway) moved to a contrib module, so moving this issue there and unpostponing.
Comment #2
jhodgdonComment #3
jhodgdonI'm working on this.
Comment #5
jhodgdonThis is fixed. I had to make the References fields into textfield because autocomplete is not supported for textarea. I put in a tag-style autocomplete, and also added some at least minimal tests for the autocomplete return values.