applying baseline to EEG data

Hi all,

I got a question regarding applying baseline to EEG epochs. The problem
is that we have some jitter in the time between the baseline period the
actual trigger I am interested in. So I wondered if it possible to
either create epochs for the baseline and then apply them to the epochs
created from stimulus triggers or keep the both triggers in one set of
epochs then apply the baseline to all the data?

best,
mads