No, this is not possible. Due to the complex nature of our global fill patterns, we only refresh content during standard fill windows and for the duration and speeds that are documented in the Fill patterns article.
The fill window (off peak) start time is initially determined based on your input and an analysis of your network conditions and traffic patterns. If you need to change the start time within the allowable range described in the article, open a ticket.
If there is an issue with fill traffic that is causing your OCAs not to fill sufficiently in the time allotted, we will open a ticket to you.