I mainly use Solidworks 2018, although I have later versions. In a drawing document, in the Files Property dialogue, titled 'Summary Information', Custom tab, I have 'Client' as one of my active properties. When clicking in the Value/Text Expression cell, a Drop Down arrow appears on the right. When clicking on this arrow an empty field appears. Is it possible to prepopulate this field with client names, to obviate the necessity to type in a client name every time?
I know that it can be done in certain cases with SW. I couldn't figure out the how and why of it so I use Property Tab Builder. Next to your property 'Client' you can have it reference a text file for the drop down, with or with out, a manually typed field. That text file where you would store you client names similar to PROPERTIES.TXT located in the SW install package. (unrelated but, properties.txt is for the drop down for property name column like description or author)