Is it possible to run a keyin at startup? I saw this AskInga article from 2002 that says one can create a txt file and then point the icon properties to it but I imagine that's pretty out of date by now?
MicroStation CE actually does support -s option after we toggle on the "Execute Startup Script" in Preference.
See the description for this from online help:
https://docs.bentley.com/LiveContent/web/MicroStation%20Help-v22/en/PreferencesOperation.html
We can place any keyins in the cmdFile.txt.