The Lookup column in Glide is designed to fetch and return an array of values based on a relation. However, most Glide components are built to display single values rather than arrays. As a result, you may not find the Lookup column available for selection in certain components because it returns multiple values instead of a single one.

To work around this limitation you can use a Joined List column: Instead of using a Lookup column, create a Joined List column to combine the multiple values into a single, comma-separated string. This converts the array into a single value, making it compatible with components that only accept single values.

In summary, the reason you can’t directly display a Lookup column in many Glide components is because it returns an array of values. To resolve this, use a Joined List column to merge multiple values into a single, delimited string.