Questions On Examination In Chief

I am the plaintiff (appearing party-in-person) in a quasi-judicial body hearing. My (plaintiff's) Examination-in-chief happenend without proper intimitaion and when I wasn't ready during the previous hearing. My cross-examination has not yet happened. I would like to add few more points to what I said during the chief examination. Can I ask my (plaintiff's) examination-in-chief be asked to re-held citing the aforementioned reasons (that it was taken without providing proper intimation to me) or is there (or what is) the way to add additional points to my examination-in-chief? Can I ask for it during the next hearing before my (the plaintiff's) cross happens?