Preferred network mode on sim 2

[Erromango]

Is there any way to edit preferred network mode on sim 2 like ##4636## do on sim 1?
or can you add the full list of network mode in settings?
I have 2 cdma sim card but default settings lte 3g 2g are 'LTE/UMTS' 'WCDMA preferred' 'GSM only'
i can only using 4636 to modify sim 1 to cmda but sim 2 can't work properly.

[zsylive]

Unable to use Chinese Unicom Network, set Chinese Unicom data card, no signal, will Chinese Unicom set to vice card, can 2G signal, I am Telecom and Unicom telecom data card dual card, no problem