Convolve tool - frequency domain convolution and deconvolution
"Master Index: <nnn>" - trace-group index for master trace to be convolved or deconvolved from active trace-group, NOTE: master trace is set to first trace in trace-group
"Type: CONVOLUTION | DECONVOLUTION" - action type, convolve or deconvolve master trace from active group trace(s)
"Master Ref Time: WINDOW_CENTER | WINDOW_START | O-P_MAX | <feature name>" - feature to be set to reference time (t=0) on master trace(s)
"Water Level (dB): <level>" - water level in dB, -1 for none (for deconvolution, complex denominator values with a magnitude less than Amin = <level> dB below the maximum denominator magnitude are replaced by a complex "water level" value with a magnitude of Amin and the same phase as the original denominator)
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