guys i got the CDS info menu and also IMS menu in flyme 6 tried to configure by this process i lost jio sim signals (not able to receive any signals) 3 things still missing tho
1) VOLTE_OPERATOR_RJIL
2)USSD
3)VOLTE Settings (CMW_500)
Got CDS INFO by installing old CDS info.apk file from flyme 4.5.3I
And got IMS Menu by editing build.prop file and adding this lines
ro.mtk_volte_support=1
persist.dbg.volte_avail_ovr=1

My device Meizu M2
Thanks for the help in Advance