Alternative of static switch parameter which can be accessed in blueprint?

According to my understanding static switch parameter value can’t be changed in blueprint.
If this is correct, is there any alternative way to achieve the same.

Basically I want to override my diffuse texture with a different one in my blueprint.

You can use a Lerp for that. Plug a constant parameter to alpha and it will switch the textures when you change the parameter from 1 to 0.

Thank you Jacky