Calculated Field Feeds Custom Field

[#1]

Description - Allow calculated field values to populate list of same field that can be used for drop down.

Why is this feature important to you - I want to create separate IDs associated with certain projects and I want to be able to tie like projects to another project (it is our workaround for no real campaign object).

How would you like the feature to work - A calculated field creates a value upon project creation when project type = campaign. The value generated will be "campaign-1234"; the field name will be "campaign custom ID" it is a calculated field. I want to then create a custom form for a non-campaign project object and on this form i want to have a drop down of the existing values in the "campaign custom ID" field.  That way, I can tie projects to one or many other campaign like projects.

Current Behaviour - I don't believe there is currently an option to do this.