Seed node?

[Centurion-Rome]

How can I enter a specific seed and text node and use its value (the same) for base, upscale and refiner?

[lord-lethris]

Like this:

Right click on the KSampler node to turn "Seed" into an input...

You can then use a seed Node with fixed output OR the KSampler will take any INT input

[ugintl]

I do not see any such option

[lord-lethris]

that's because they have since taken that feature away.

Instead any entry can be a "join". Like this: