mos property change using skill

hi,

I want to change mos property using skill. Other property changing except "m".

I use a for loop to check prop whiin ins~>prop. if match with prop~>name prop~>value will change to new value.

but multiplicity is not changing.

using prop~>name i saw "m" property not coming.

("amsfetType" "wiringStartColorM0" "wiringOverhangM0" "wiringMarginM0" "wiringOffsetM0"
"wiringWidthPatternM0" "wiringWidthM0" "dummyRxFinBot" "dummyRxFinTop" "gateExtBotSwitch"
"gateExtTopSwitch" "floatPcL" "floatPcR" "dummyPcL" "dummyPcR"
"permuteRule" "lrsd" "p_vta" "acv_uncorr_sign" "pdevhgeos"
"pdevhgeos_sw" "pdevlgeos" "pdevlgeos_sw" "pdevdops" "pdevdops_sw"
"psej" "pdej" "asej" "adej" "cdfParamType"
"ngcon" "composite" "extract" "cpp" "fpitch"
"total_nfin" "nfin" "nf" "l" "fetType"
)

But in gui if i modify multiplicity of mos "m" is coming

("amsfetType" "par" "m" "wiringStartColorM0" "wiringOverhangM0"
"wiringMarginM0" "wiringOffsetM0" "wiringWidthPatternM0" "wiringWidthM0" "dummyRxFinBot"
"dummyRxFinTop" "gateExtBotSwitch" "gateExtTopSwitch" "floatPcL" "floatPcR"
"dummyPcL" "dummyPcR" "permuteRule" "lrsd" "p_vta"
"acv_uncorr_sign" "pdevhgeos" "pdevhgeos_sw" "pdevlgeos" "pdevlgeos_sw"
"pdevdops" "pdevdops_sw" "psej" "pdej" "asej"
"adej" "cdfParamType" "ngcon" "composite" "extract"
"cpp" "fpitch" "total_nfin" "nfin" "nf"
"l" "fetType"
)

I wat to cahnge "m" in skill code how?