Finally I found the best form editor and visually are superior to others.
Great! I want the comercial version but I tried first the free (Notice that 11 Backport have problems when create a new form, can't do it for a disorder of buttons) Backport 10 are excellent.
After upgrade to backport 11 make sure you clear the browser cache. The scripts changed, that's why this happened.
Only have missed for some types of charts as "scatter". Hope someday can increase the types of charts as for a plugin is perfect!.
many thanks for your review! You may now with version 1.2.1 create scatter charts. You may also use my implementation of regression calculations for scatter charts.
Thanks to do this extension. Is incredible that is not Commercial (Thanks for that too! ;-) )