I have been trying to add the multi-select option in the inline grid edit of the customer grid for a customer attribute. However, I could find samples for adding multi-select options for inline editing in Magento vendor files. I have tried to add that by referring to this link from Adobe, https://developer.adobe.com/commerce/frontend-core/ui-components/components/columns-editor-record/ , but the multi-select values are always returning static which we defined in the ui component and also when we try to save multiple value using this, only value is being saved on database. I have tried to add the class object which returns the all values for that multi select, but it still shows the same.
If anybody knows how to add inline edit for multi-select column in the customer grid, please share with us as that would be very helpful.