# Way to call sublists from a list based on the number of items in a list? **URL:** \ **Category:** Packages\ **Created:** [April 1, 2016, 8:32am UTC](https://forum.dynamobim.com/t/way-to-call-sublists-from-a-list-based-on-the-number-of-items-in-a-list/3602 "2016-04-01T08:32:20Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Jessica\_Duke](https://avatars.discourse-cdn.com/v4/letter/j/b19c9b/32.png) [@Jessica\_Duke](https://forum.dynamobim.com/u/Jessica_Duke)\ **Post date:** [April 1, 2016, 8:32am UTC](https://forum.dynamobim.com/t/way-to-call-sublists-from-a-list-based-on-the-number-of-items-in-a-list/3602/1 "2016-04-01T08:32:20Z")
Hello, I’m trying to parameterize the floor framing for a building with an atrium, but am having trouble removing the members that cut through the atrium. Right now, I am using slice to split curves where the atrium is located. In a list with all the beams, sublists containing 3 items cut through the atrium. I would list to call only the sublists that contain three items. Is this possible? ---
**Author:** ![Gui\_Talarico](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/gui_talarico/32/10887_2.png) [@Gui\_Talarico](https://forum.dynamobim.com/u/Gui_Talarico)\ **Post date:** [April 1, 2016, 9:42am UTC](https://forum.dynamobim.com/t/way-to-call-sublists-from-a-list-based-on-the-number-of-items-in-a-list/3602/2 "2016-04-01T09:42:55Z")
Can you post a screenshot? You could you **Count** each sublist with **List.Map** , check if **==** to 3, and then select only those sublists ---
**Author:** ![Steven](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/steven/32/112504_2.png) [@Steven](https://forum.dynamobim.com/u/Steven)\ **Post date:** [April 1, 2016, 6:24pm UTC](https://forum.dynamobim.com/t/way-to-call-sublists-from-a-list-based-on-the-number-of-items-in-a-list/3602/3 "2016-04-01T18:24:06Z")
What Gui said ![Capture](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/6/672d3b4ae0e3cf71c5097d920fdd0f42bf6f3d40.png)