Way to "add" a selection by holding down cmd and dragging

When selecting by dragging, it would be nice if it would be a way to “add” a selection by holding down cmd and dragging. Currently, when setting a range by dragging a separate selection, there is no “additional” selection and the range is newly set.
I know I can add selections with individual clicks, but I would like to increase the efficiency of my work.

Hello

Thank you for writing in. I have raised your request to our Development team and we will discuss this soon.

Feel free to contact us again if you need any assistance and we will be happy to provide further help.

Kind Regards,
MarginNote-QSD
Support Team