Widgets : property 'index' suggestion

Hi,

it would be great to have an ‘index’ property method for widgets:
by default the index value is the main datastream number
if index is set, it overrides the main datastream number

for exemple:

  • a ‘value display’ widget datastream is 12 : changing index value to 7 will immediately apply properties and value of datastream 7 and update widget display according to the new datastream
  • series in a chart can be changed very easily
  • … more other uses…

programmer must ensure datastreams are compatible

thanks a lot