Scheduling Slack Channel Posts Separately While Publishing Events on the Microsite

publishing events to microsite vs channel let's say i want to publish two events. id like to get them up on the microsite so that theyre there and we have a place to direct folks. but in slack, we want the event to post in channel at a time that works best for us, is this possible? i ask because when publishing events, we wouldnt want to publish two event posts right after each other; ideally we want each slack message post to have its time. is it possible to self-serve a "post event to channel" trigger at a time we want, while also having the event published on the microsite?