I am a new MicroStation user (Version 10.13.01.01)
When I paste from the clipboard, the Scale dialog is not visible. I don't know if it is out of the drawing area or where the setting is to make it show.
The image below shows what I am looking for.
There is some good advice in this thread: https://communities.bentley.com/products/microstation/f/microstation-forum/99618/toolbox-docking
Generally, speaking dialogs float in MS and you can dock them and Save Settings (Ctrl-F) to save that for the next session.
Samir