Send Time Optimization - AJO Campaigns

Description - Send Time Time Optimization 

Why is this feature important to you - Because my client has campaigns that only require an Email send, so it only makes sense this function should be available in Campaigns and not just Journeys. 

How would you like the feature to work - This feature is only available in Journey, but should be available for Campaigns are well. 

Current Behaviour - I have to currently build out Journeys to use STO, and with so many Journey's being used Globally, we can easily reach the threshold of 300 not to mention the resources it uses.