[Paraview] Color scale editor

[Fred Fred]

Hello,
I tried to add 3 points to the blue-to-red colormap:
  - 1 point at value -0.001 with default color (ie I keep the color from the blue-to-red ramp)
  - 1 point at value 0.001 with default color
  - 1 point at value 0 with black color
in order to clearly identify zone for which the value is exactly 0.
But the editor behaviour is annoying: I put a value in the line edit widget, click close, and when I come back to the editor the value has not been changed.
Dragging the circle with the mouse is not more reliable: it seems that the editor prevents from having the circle going too close from each other.
So:
  - a suggestion: a "set" button would be useful to take into account a change in the coordinates of a point without having to close the editor and go back to it next
  - a question: how to cope with this annoying behaviour of the editor?

 		 	   		  
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