LFO Rate and modulation method

I added LFO_Rate control port and change the modulation method selection so that it works like this:
0: only manual modulation
1: manual modulation + EG2
2: manual modulation + LFO
3: manual modulation + EG2 + LFO

Max value for LFO Rate was calculated as 2*sample_rate/4096 where sample_rate is 48000.
It still needs control ports for LFO and EG2 levels.
As it is while using EG2+LFO, the LFO dominates the modulation compared to EG2.

I'm not sure how many and where to put the LFO and EG2 levels.