During swimming i'm switching styles during one training so at the end the style shows as hybrid, it will be nice if the native swimming application can tell how long I swim which style
It sounds like this question is relating to the native swim mode. This forum is for ConnectIQ app ideas, so it seems your suggestion is in the wrong area of the forums.
That said, in my experience with swim mode on a few different devices, the device will automatically recognize the stroke used for each length of a pool swim. If you swim in a 25m pool and do 25m of free, 25m back, 25m free, 25m back, the watch will correctly recognize this. If you swim in the same 25m pool and do 10m free and 15m back in a single length, it will indicate a mixed stroke type. This can also happen if the device cannot detect your stroke properly, which often happens if your technique is inconsistent with what the software is designed to detect..
