Thank you, Stefan Blom and Guessed.
I have finally got round to trying your suggestions. The Building Blocks solution is nice and easy.

As for the Themes possibility, I would have to get acquainted with making changes there. Have never done that.

Thanks again and... one more question:
Is it possible to use a Building Block with a keyaboard shortcut, or an icon?

Cheers Tomasz
PS I know I can use Left Alt + V + B and select a BB.