[Samsung Galaxy A3, A5, A7 (2017) ROMs, Kernels, Re] MaMaReza:
here is some tweaks I managed to get them to work on this port and I'm gonna share it here with u guys too hope it can help

AGAIN ALL CREDITS GOES TO OPTION BCUZ HE IS THE DEVELOPER OF THIS ROM AND THESE ARE ONLY SOME TWEAKS BY ME NOTHING MORE

GUIDE TO ADD CSC TWEAKS AND MAKE VOLTE WORK

THIS IS THE FIRST AND THE MOST IMPORTANT STEP SO U NEED TO DO THIS STEP OTHERWISE THE OTHER STEPS BELOW WONT WORK FOR YOU!!!

first download omc files from HERE and find ur contry's csc folder then copy everything (except omc.info,res folder in some csc's and etc folder) to csc folder on ur rom and give permission rwrr to each one of them with any root explorer and then delete others.xml from csc folder on ur rom and reboot (there is a res folder on some csc's which is only boot animations and some ringtones and notifications )

note that this will make ur settings duplicated so to fix it open ur cscfeature.xml from rom's csc folder with any text editor(I prefer ES FILE EXPLORER) then add this line to the end of it before </FeatureSet>

<CscFeature_Setting_ConfigOpMenuStructure>GLOBAL</CscFeature_Setting_ConfigOpMenuStructure>

GUIDE TO MAKE voLTE WORK

add this line to the end of cscfeature.xml on csc folder of ur rom before </FeatureSet>

<CscFeature_VoiceCall_ConfigOpStyleForMobileNetSetting>voltesettingscommon,checknonvoltesim,voltesettingOPS</CscFeature_VoiceCall_ConfigOpStyleForMobileNetSetting>

GUIDE TO MAKE WIFI CALLING WORK

add these lines to the end of cscfeature.xml on csc folder of ur rom before </FeatureSet>

<CscFeature_Setting_SupportWiFiCallingMenu>TRUE</CscFeature_Setting_SupportWiFiCallingMenu>

<CscFeature_Setting_SupportWifiCall>TRUE</CscFeature_Setting_SupportWifiCall>

<CscFeature_SystemUI_ConfigDefQuickSettingItem>Wif i,SilentMode,Bluetooth,RotationLock,Flashlight,Air planeMode,PowerSaving,MobileData,WifiCalling,BlueL ightFilter,WifiHotspot,SecureFolder,Location,Nfc,A od,AllShareCast,Sync,BikeMode,PowerPlanning,SmartS tay,ScreenCapture,VoLte,BatteryMode,KidsHome</CscFeature_SystemUI_ConfigDefQuickSettingItem>

<CscFeature_Wifi_SupportAdvancedMenu>TRUE</CscFeature_Wifi_SupportAdvancedMenu>

GUIDE TO ADD SAMSUNG STOCK REAL TIME NETWORK SPEED

add this line to the end of cscfeature.xml on csc folder of ur rom before </FeatureSet>

<CscFeature_Setting_SupportRealTimeNetworkSpeed>TR UE</CscFeature_Setting_SupportRealTimeNetworkSpeed>

GUIDE TO ADD CALL RECORDING

add this line to the end of cscfeature.xml on csc folder of ur rom before </FeatureSet>

<CscFeature_VoiceCall_ConfigRecording>RecordingAll owed</CscFeature_VoiceCall_ConfigRecording>

GUIDE TO CHANGE NETWORK INDICATOR TO LTE

find this line on cscfeature.xml and change THR(whatever it is on ur csc) to LTE

<CscFeature_SystemUI_ConfigOpBrandingForIndicatorIcon>THR</CscFeature_SystemUI_ConfigOpBrandingForIndicatorIcon>

to change 4g+ to lte+ find this line on cscfeature.xml and change 4.5G(whatever it is on yours) TO LTE+

<CscFeature_SystemUI_ConfigOpBrandingLTEWideBandIcon>4.5G</CscFeature_SystemUI_ConfigOpBrandingLTEWideBandIcon>

GUIDE TO ADD APPLOCK

add this line to the end of cscfeature.xml on csc folder of ur rom before </FeatureSet>

<CscFeature_SmartManager_ConfigSubFeatures>roguepo pup|autoclean|autolaunch|autorestart|storageclean| backgroundapp|applock|trafficmanager|trafficmanage r_auto|notificationmanager|data_compression|cstyle |fake_base_station|appclean|devicesecurity</CscFeature_SmartManager_ConfigSubFeatures>

NOTE: for this to work u need to copy its app to system/app folder and give permission rwrr to apk and rwxrxrx to folder then reboot

GUIDE TO ADD SCREEN RECORDER

copy its files to system/priv-app give permission rwrr for apks and rwxrxrx to folders then reboot

GUIDE TO ADD CSC CODES WORK

copy etc files which is present on omc file (your csc folder) which I uploaded and paste them in system/etc give permission rwrr and reboot

GUIDE TO CHANGE BATTERY CAPACITY IN SETTINGS

decompile framework-res.apk go to res/xml find power profile and change battery capacity from 3600 to 3000 then recompile AND MAKE A FLASHABLE ZIP AND FLASH IT TROUGH TWRP!!!

I WLL UPDATE THIS GUIDE WITH MORE TWEAKS SOON AND IF U GUYS NEED ANYTHING MORE LET ME KNOW

DOWNLOAD OMC FILES FROM ABOVE OR: here

IMPORTANT:I copied these codes so there maybe some gaps or misses between the words or codes try to fill them by urself if u saw one these codes are tested by 5 ppl and all are working fine SO MAKE SURE U DID ALL STEPS RIGHT

A BIG THANKS TO CORSICANU BCUZ I STUDIED HIS WORKS AND GUIDES ON XDA AND LEARND A LOT FROM HIM AND ALSO A BIG THANK TO OPTION AND CORSI FOR MAKING THIS DEVICE FEEL ALIVE