# List operations, count and split list into lists **URL:** \ **Category:** Revit\ **Created:** [April 30, 2025, 11:09am UTC](https://forum.dynamobim.com/t/list-operations-count-and-split-list-into-lists/109823 "2025-04-30T11:09:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Cem\_Altineller](https://avatars.discourse-cdn.com/v4/letter/c/8491ac/32.png) [@Cem\_Altineller](https://forum.dynamobim.com/u/Cem_Altineller)\ **Post date:** [April 30, 2025, 11:09am UTC](https://forum.dynamobim.com/t/list-operations-count-and-split-list-into-lists/109823/1 "2025-04-30T11:09:02Z")
Hi, I am trying to number doors in a room, if the room has more than one door. I established how many doors have a room like shown in the picture and the list shows 29 Elements of Count. ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/a/f/afcee844620f94714319a8e8b94adf79b14ef58c.png) But what i need is, first list should be from 1 to 9, second list should be from 1 to 20 and so on. 29 seperate lists that contains from 1 to x. Stuck at this point. Any help would be appreciated, thanks in advance. ---
**Author:** ![kovacsv](https://avatars.discourse-cdn.com/v4/letter/k/f6c823/32.png) [@kovacsv](https://forum.dynamobim.com/u/kovacsv)\ **Post date:** [April 30, 2025, 11:17am UTC](https://forum.dynamobim.com/t/list-operations-count-and-split-list-into-lists/109823/2 "2025-04-30T11:17:59Z")
in code block type: `1..numberofdoors..1;` numberofdoors is the data from count node ---
**Author:** ![Cem\_Altineller](https://avatars.discourse-cdn.com/v4/letter/c/8491ac/32.png) [@Cem\_Altineller](https://forum.dynamobim.com/u/Cem_Altineller)\ **Post date:** [April 30, 2025, 12:24pm UTC](https://forum.dynamobim.com/t/list-operations-count-and-split-list-into-lists/109823/3 "2025-04-30T12:24:35Z")
Thank you for the swift answer.