If you don't mind creating a separate alert for each weekday, and for each metric, you can add a filter/segment for "Day of week = ____". Very cumbersome to create 7 alerts for each metrics, but it's the only option I know -- short of doing a data feed into another platform.

Sounds like what everyone wants is a sharable, online version of Report Builder. That is, we could create a new "Spreadsheet" panel, define which data block(s) we want ingested into it, filtered as needed (yes Linda58, including metrics!). Once we have the data we want, we can then add graphs; then ...