How can I setup a specific build command?

[fintechee]

Emscripten is great! This studio is great as well!!
I love it!

I have a question. (I'm a newbie to this IDE)

How can I setup a specific build command?
For example:

emcc atr.cpp -o atr.js -s EXTRA_EXPORTED_RUNTIME_METHODS='["ccall", "cwrap", "getValue", "setValue", "addFunction", "UTF8ToString", "lengthBytesUTF8", "stringToUTF8"]' -s RESERVED_FUNCTION_POINTERS=100 -s MODULARIZE=1 -s 'EXPORT_NAME="IndiPlugIn"' -s ENVIRONMENT=web -s ALLOW_MEMORY_GROWTH=1

and

emcc ea_basedon_macd.cpp -o ea_basedon_macd.js -s EXTRA_EXPORTED_RUNTIME_METHODS='["ccall", "cwrap", "getValue", "setValue", "addFunction", "UTF8ToString", "lengthBytesUTF8", "stringToUTF8"]' -s RESERVED_FUNCTION_POINTERS=100 -s MODULARIZE=1 -s 'EXPORT_NAME="EAPlugIn"' -s ENVIRONMENT=web -s ASYNCIFY -s 'ASYNCIFY_IMPORTS=["jOrderSend", "jOrderModify", "jOrderClose", "jOrderDelete"]' -O3

How to make both commands executed by the online studio?

Any help would be appreciated, many thanks.

[fintechee]

I googled WebAssembly editor and found another good IDE: Wasmfiddle.
There is a build setting.
But Wasmfiddle is deprecated.
And the page said they created a new project: WebAssemblyStudio.
Then why doesn't the updated version retain the necessary feature?