DSP function not available with Pi and IQAUDIO

I’m new to Raspberry Pi 3B as an end point with IQAUDIO DAC Pro running RoPieeeXL.

I’m receiving the sound output just fine and when I try to control EQ on my iPhone X in that room, the DSP and EQ are should in menu but not able to open EQ and adjust frequency.

Can someone provide some insight here

Thanks
Bruno

You need a tablet or pc to adjust them, you can only load and unload saved presets with the phone.

Wow thank you I didn’t know that limitation! Perfect I will run it now