Hi @Seenu ,
it is really strange. I checked all the old versions of the MEMS package including also the v7.2.0 and I cannot find these APIs in the custom use case. As I know, these APIs at the moment are available only when you use the expansion boards like for example in the files iks01a3_motion_sensors_ex.[h/c]. My suggestion, if you really need to use them, is to define them by yourself at application level inspiring to the available custom APIs and the same type APIs implemented for IKS01A3 expansion board.
Best Regards,
Carlo