How to create a dropdown filter with strings from a csv file?

[KalebeRS]

Hello,

I'm new on the splunk community, how do I create a dropdown with strings retrieved from a csv file separated by commas? In this csv file contains a bunch of different values.

For example is this image, each of one needs to be shown in a dropdown.

How do I make this?

[ITWhisperer]

You can use inputlookup in the search which populates the dropdown.