Populating the order frequency field in the order entry ui module

Am failing to add an order because I cant get the appropriate data for the frequency field. Which type of data does this field require and where is it generated from? thank you

Did you get a chance to see this? Porting Order Entry UI to ReactJS and adding it to the reference application?

I have looked at it. We got a way around it later. We realised that we needed add some some data to the orderfrequency table referencing the concept class table. Thank u