How can I edit a Cell in MicroStation to have all instances of that Cell in my drawing to be updated dynamically?
Open the .cel file with Microstation, find the model with the cell name, modify. Then in your dgn use the Replace Cell command. If you happen to have some files but no cell library, you'll need to create a cell library, add the cell (likely scale will need mamnipulated), then modify then replace.
Connect r17 10.17.2.61 self-employed-Unpaid Beta tester for Bentley