visitor visa for parents and in-laws

[h1visahelp]

I am planning to apply visiting visa for my parents and in-laws and would like to send all the required documents (I-134, bank letter, employer letter etc) for 4 of them at same time. Is it ok if I take two separate appointments (one for parents and one for in-laws) by giving 1 week or 2 weeks gap for each appointment. Please suggest me.

[immihelp]

That's OK.