I want to divide a IQueryable into several ones, like the image below, extracted from the explanation of the .AsParallel(). But instead of running all in parallel, I want to run some of them together, and then join later.
So, the question is, there is any way to group this methods at will? Thank you
Update With Example
I have several linq methods, I want to peek specific linq to run grouped in the same task. Possible?

