We have struggled for over a year with the tenant notification time. Our busy showing season has started again, and our tenants are already complaini?

We have struggled for over a year with the tenant notification time. Our busy showing season has started again, and our tenants are already complaining. Is there any way that we can set a tenant notification to go out the night before at 5 or 6 PM and in the morning? Also a text notification for tenants would be nice.