DLR Export for Entity to only include direct entity and not [parent].[child] format

Hi all,

I've made a data load rule that pulls a bunch of data from FCCS into a csv file which gets put into another application. When pulling the entity dimension data, the format is [parent].[child], but the team only needs the direct entity. For example, here's a screenshot of the output:

For these values, I would just want the 301 to be shown. Does anyone know any configurations that needs to be done to do this? Here is the filter within the DLR as well:

I've tried using different filters as well (Children("100C"), IChildren("100C"), etc. ) but nothing seems to be working. Any insight is appreciated, thank you!