Hi Maxim,

Thanks for this. I hadn't been able previously to find the menu option for scaling the viewport. Part of the problem is that i can't see many of the full menu item names, no matter how i adjust the working window, many of the menu items are truncated, which is frustrating. See attached screenshot. The menu item for scaling the viewport, you will see, is only visible as "Standard s.." 

I did find something similar to what i was looking for in the help section, but it doesn't work for me, titled "To Modify a Layout Viewport Scale Using the Properties Inspector" it says...

1. Click the border of the viewport whose scale you want to modify.
2. Right-click, and then choose Properties.
3. In the Properties Inspector, select Standard Scale, and then select a new scale from the list.

   The scale you choose is applied to the viewport.

   Note:

   To use a custom scale, enter a scale in the Custom Scale field in the Properties Inspector.

When i do this however, as soon as i choose "properties" the option for scaling or "Standard scale" disappears. In actuality, i find that i only need step one to access the "Standard scale" menu option. No need to choose properties.