Using checkboxes to create records in a portal

[Jhancho]

I'm trying to create a database that will (in part) be used for employee timesheets and job creation/monitoring, and eventually for billing and beyond.

Right now, I'm stuck on how to get the different job operations to show up in a portal so that the user can select from them, then assign employees and estimates for them.

I had envisioned a new window to display the 50-odd ops that this company has, then update upon a submit button. Now, the op numbers are stored as a value list, and upon submission, the portal would just concatenate all the selections the user made.

Anyone know any tips?