Chain of chained jobs, is that possible?

[razzetto]

Hi, i would like to know if a chain of chained jobs is possible.
Something along these lines:

• a chain contains 2 jobs [JobA, JobB];
• i push multiple instances of this chain in a stack, obtaining:

[
	[0] => [JobA, JobB]
	[1] => [JobA, JobB]
	[2] => [JobA, JobB]
	[3] => [JobA, JobB]
	[4] => [JobA, JobB]
]

I'd like to treat this stack as a queue, ie:

• sequentially if just one proc is running;
• if two procs are running:

proc A picks chain [0];
proc B picks chain [1];
the first proc that finish the execution of the chain, picks chain [2]