How to avoid showing disabled parent from Drop Down list Selection

SriNitya

User is not willing to see parents in drop down list selection.
By creating a flat list of my level 4 and by creating mapping between L4 and flat list we can fulfill the ask but I am looking at multiple options on how to achieve this.
Feel free to share the approaches if any.

andrewtye

presumably this is as a line item selection rather than as a page selector.

if it's the first then think you've come up with the best available answer.

if it's the latter then can do show/hide on the format setting in the UX page itself.