CW adder modules just add synchronous signals together, without being able to control the signal volumes. there are two variations: normalized and not-normalized adders.
normalized adders: Output clipping is not possible because input signal’s level(s) are divide  by the number of inputs, eg input level 1.0>add2>output level is 0.5 (see also Math&Tables). 

dspLoad 0.40

dspLoad 0.70

dspLoad 0.70

dspLoad 1.00

dspLoad 1.20  download

dspLoad 1.30   download

adding mod sources:

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Mix&Gain
Adder
Gain
Meter
Mix-Simple
Mix-Various
MixMatrix
MixMatrix2
Modifier
Modulator
Modulator2
PolyOut
Switch
Switch2
Switch3
ModSwitch
ModSwitch2
VCA