On my PC I have several DB's with the master one maximising the display on open.

This I would like to retain throughout but my other DB's need to be opened and retain their size and state.

however this doesn't happen.

does anyone know how I can retain the window size and shape?

Use scripts with the Toggle Window [maximise] command in them every time you change databases.

I have used this with some of the Databases but I do requrie some to be situated as if they are floating windows.

I hope this makes sence, hence the reason for maintaining the size for optimum effect