Self-populating custom lookup field

[M_S_]

I would like to create a custom field with a dual nature: users should either be able to select from previously entered values or enter a new value (which in turn is then available to pick for subsequent issues).

Is there such a custom field type that supports this? 

[M_S_ · Accepted solution]

Well, I guess, in that case I will be looking at nFeed (an excellent plug-in) to pull data from a database and think about keeping up a table there with values that we will be using. May actually be better in my case, as it prevents users from creating duplicate entries accidentially.

[Nic Brough -Adaptavist- · Accepted solution]

No, and as far as I can tell, no one has written an add-on to provide such a field.

The closest you can get is very close - a label field.  It accepts new input values, but suggests exisiting ones when the user starts typing.

[M_S_]

"...suggests existing ones..." means based on the browser? This would have nothing to do with JIRA and not work across users/computers?

[Nic Brough -Adaptavist-]

I don't understand that comment.

A label field makes suggestions based on pervious labels that have been entered.

[jamie_slater]

try https://confluence.atlassian.com/jirakb/automation-rule-to-sum-up-story-points-of-stories-in-different-statuses-linked-to-an-epic-1108673757.html