The display of the attachment panel (and all of its tabs) is controlled by configuring Object Connections (see here and here). What are you trying to configure?

@Alexander Heinze 

In MWO once a document is inserted can’t be deleted but in case the technician want to delete a document there is no option in MWO . Is there a way to do so ?

I checked in 23R1 and yes, there is no option to delete a document (only media attachments). I would post the question in the MWO forum: Service (Touch Apps, MWO, MRO) | IFS Community