Can Smartsheet Implement Task Constraints and Successors?

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Could Smartsheet implement task constraints similar to MS Project i.e. as late as possible, must finish on etc.? This is critical to the work I do in Production Scheduling. I don't think it would be that difficult to implement considering Smartsheet's already has a robust scheduling software. This would be extremely helpful in my daily work and would allow me to link project schedules from our project managers into my production schedule.

I would also like to know when successors are going to be available?

It seems as though these two things have been a topic of discussion for some time and Smartsheet staff are not doing anything to implement them. Is Smartsheet IT team not capable of implementing something like this? Maybe a good strategy would be they look at how MS project works and then hire more experienced people to implement.