How to invoke UI on PC screen(VR Spectator) and not on VR HMD?

[Supremative]

I suggest using RetainerBox and SpecatorScreenTexture.

Follow the steps:

1. Wrap your widget tree with two RetainerBoxes one by one:
   

The root RetainerBox makes your widget invisible, and the nested one writes the widget to Material that we use as a texture for SpectatorScreen.

2. Create a material for the root retainer box:

3. Create a material for the second retainer box:

4. Create a render target, assign it as a spectator texture, and refresh it every tick with the widget material:

5. Then setup the spectator screen:

As a result, you have a widget invisible to VR, but you can see it on your monitor screen and interact with it.

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