A divided doses regime is as good as it can maintain the blood levels and can be done instead of the single dose.
Please feel free for your follow up questions.
I am currently on 2 mg of clonazepam once daily, and would actually like to have the dose increased to 4 mg twice daily. Alternatively, the current 2 mg could be divided in 2 doses (1 mg in the morning and 1 mg in the night). Would that do the same, you think? What would you recommend? Are the blood levels stable with a once daily dosing?