how to define a sectional display?

hi folks,
how can i define that an indicator begins with an illustration at the start of a month an ends with the last day of the month, then starts with a new illustration.

for example

1st of april: the maximum of the momentums (march to april) of two pairs is measured and for april the ATR of this maximum pair is shown.

1st of Mai: same again... max(momentums)---> ATR of the maximum pair

how can i do that?

many thanks!