Different Ring Tone for each sim on dual sim phones

Seems there is an omission in ios14 and it is impossible to set different ring tones on each line if you have a dual sim iPhone. Seems odd to have left it out as you have to get your phone out of your pocket to see which line is ringing rather than hearing the tone and knowing immediately if it is a work line or personal line call - easy to do it on Android, but seems not possible on iOS.