Splashscreen for Shuruq

Assalamu'alaykum warahmatullahi wabarakatuhu

There is a bit of time gap in which we don't do prayer (nafilah) around the time of Shuruq. Different Masjid may apply different time gap. Would it be possible to add a customised splashscreen (in the Alert section) during the Shuruq time so we can tell the Musalees not to make any prayer during this time?

Jazakumullahu Khairan