# Feature request - Look up List **URL:** \ **Category:** Ask for Help\ **Created:** [February 3, 2021, 7:20am UTC](https://community.glideapps.com/t/feature-request-look-up-list/22161 "2021-02-03T07:20:46Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\ **Post date:** [February 3, 2021, 9:15am UTC](https://community.glideapps.com/t/feature-request-look-up-list/22161/6 "2021-02-03T09:15:35Z")
Yeah, what you’re getting at here is having the ability to define conditional relations. This is something that several people have been asking for. Edit: For example… > [@Conditional Relations](https://community.glideapps.com/t/conditional-relations/13818): > > I know myself and others have made this case before, but I’d like to mention it again. I think it would be hugely benificial to be able to apply IF conditions within Relation settings. My use case for this is to get the unpaid dollar amount from unpaid invoices. I have invoices for students that, let’s say, are billed monthly. The user creates the billing period for a particular month, and any lessons that have occured within that billing period are automatically included in that invoice. In… --- _[View the full topic](https://community.glideapps.com/t/feature-request-look-up-list/22161)._