Using of Draw functions and options would be much easier if their names and synthax would be known to the dynamic assistant.
For functions: display a prototype and explain the meaning of the arguments
for options: explain the meaning and the possible values.
First step would be to find out how to set the doc strings without actually defining the right hand side, as these names should be transferred unchanged to Maxima. Then the actual texts have to be specified. A good starting point is the pdf handbook.