Minimizing the message header in Outlook click-to-run to display the number of message attachments

[blue_man]

Is it possible to minimise the Outlook message header in Outlook click-to-run like it is in Outlook 2013/2016 so it then displays the number of message attachments? see link below for example. 

https://www.msoutlook.info/question/839#:~:text=Press%20the%20little%20chevron&text=)%20in%20the%20b....

[#2]

I have found this which works, but unsure if there is anything we can do natively in Outlook click-to-run?

https://www.datanumen.com/blogs/quickly-get-total-number-attachments-selected-outlook-emails/#:~:tex....