Change selected master properties with ExtendScript

[Hector Vera]

Incase you wish to know more on Master Properties in Master effect, here is a tutorial that I found: https://www.youtube.com/watch?v=H1ZsiQy764Q

First you select the layer of the Master Properties to change, then click on the Master Properties Icon and then select the Master Properties you wish to change by scrolling down. Then you double click it and type in that new text.

You should see the updated text in that Master property layer afterwards.

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[Clara Martin]

Thank you for your replay.

Unfortunetely i know it, i want to do it with script. Is it possible ?

Thank you in advance 🙂

[David Conklin]

I think this is what you’re asking for. Let me know if not.

This script will update your [first] selected property on your [first] selected layer in your active comp to say “abcd.”

(function(){
  app.beginUndoGroup("Updated selected text essential property.");

  var comp = app.project.activeItem;
  var lyr = comp.selectedLayers[0];
  var prop = lyr.selectedProperties[0];
  prop.setValue("abcd")

  app.endUndoGroup();
})();

If you wanted to be more specific you could say

var prop = lyr.essentialProperty.property(1);

or

var prop = lyr.essentialProperty.property("thePropertyName");

Hope that helps.

[Clara Martin]

Thank you very much, this is exactly what I wanted 🙂