[Maxima] Worksheets in xmaxima?

[van.Nek at gmx.net]

Hello,
it is possible to change the blue expressions in the Maxima Primer window and to 
evaluate them. It is also possible to write some text in between.
But unfortunately it is not possible to save the changed window. 
If one could do this, this would be a first step to worksheets like in Maple.
Question: Does anyone see a chance to go in that direction?
Just an idea
For what its worth
Volker