A bug in Amaya 9.52 and questions about mathml panel

 Hello,
 
 I found a bug in Amaya 9.52 :
 1) Create a new mml document. By defaut there is a "mi" tag in the source. 
 2) Push the "Delete" key to delete this tag.
 3) Click one time on a construct button (Sum or Integral) : the cursor disappears.
 4) Click one more time on the button : Amaya crashes.
 
 About the MathML panel I sent you a new update where a lot of constructions are complete, but I don't know if you had time to look at it as I saw you have added nothing to the cvs repository.
 Some constructions need to have parameters asked to the user so it will be usefull for me if you explain the way to do it, because for the mtable it seems a little complex. 
 
 Fred