How to set up for a 2nd Git Clone Repository Step?


Hi there,
After adding the step to git clone my project, I am trying to add another Git Clone Step to clone the emscripten SDK repo which I will use that emscripten compiler to compile afterwards. But I checked the 2nd Git Clone Step, the Git URL field is required but not editable, should I edit the bitrise.yml directly? How?

(I checked at Seems no more details)