Android Studio Upgrade 3.4.1 Universal APK Option Missing?

[zx12a1]

I have loaded an (old) Cocos2d-x project (3.15) using NDK 17 into Android Studio which has just been updated to 3.4.1.

I am only offered individual build variants for the 3 chosen cpu options - armeabi, amreabi-v7a and x-86:



Previously the options just included ‘debug’ and ‘release’.

I have checked any files changes and the only two are:
build.gradle

classpath 'com.android.tools.build:gradle 3.2.1

is now

classpath 'com.android.tools.build:gradle 3.4.1

and gradle-wrapper.properties

distributionUrl=https://services.gradle.org/distributions/gradle-4.6-all.zip

is now

distributionUrl=https://services.gradle.org/distributions/gradle-5.1.1-all.zip

I have NO splits (never had…).

I would like to have the option of generating a single universal apk as I could previously, i.e. build variants simply 'debug' OR 'release'.

Any guidance gratefully accepted.

 

[belodion]

No guidance offered after 5w. I'm sorry.