Forum Discussion
This is just a suggestion... I haven't tried it but this is the general strategy that I would start with.
Basically, map the basic components of the select (the drop down arrow, the main control for clicking, the panel that displays the choices). Use the "className" property as your mapping for those components so you identify the individual bits.
Then, when you click on the control, you look for the "TextNode" object in the display panel that corresponds with your desired selection using a "FindChild" call. When that object returns, simply execute the "Click()" method on that TextNode to simulate clicking on the desired option.
Write all this in a custom Script function somewhere that you can then call as something like "clickAngularMatSelect" with appropriate parameters for the mapped control and the desired selection object.