I do this on occasion. I am conducting some online research about a topic of interest. I want to save the bookmark Tabs for further research at a later time. One way of doing that is to save each bookmark separately. You could leave the window open and open a new browser window perhaps. But, Safari provides an easier way. Here is how that works.
Saving Multiple Bookmarks
Here is my Safari web browser with several open Tabs:
Now, if you wish to save several Tabs for further research, just go to the Safari Bookmarks Menu and select “Add Bookmarks for These 4 Tabs. . .”:
You are then presented with this drop down menu asking for a Save location and for you to Name this set of Tabs:
Once you have selected your location and named the set just click Add:
Safari then saves the Tab set to your location:
When you wish to resume this online research just select the Tab set in your menu and choose Open in New Tabs:
The Tabs are opened in your Safari browser.
This is kind of a minor Safari feature, but it could come in handy for online research or perhaps online shopping.