Can you copy to multiple destination sites?

I need to copy a single page to multiple destination sites. The sites are not in a group.

On the site id input label it says” destination site(s), however, if I put multiple IDs in the text field, it only picks up the first ID. I’ve tried with comma separating and comma plus space and it still only picks up the first in the series. Does the plugin functionality allow for inputing multiple destination IDs at the same time or do I have to go through the copy process separately for each destination site?