Add extension

#1

I have mBlock 5.3.5 software installed on my pc, I want to add a zip file of extension, but I couldn’t find Add extension button or manage extension, just like it was in mblock 3,
please help

#2

Hi xeyad,

To built a extension on mBlock5 software, please refer to [this instruction](https://www.yuque.com/books/share/b0c98e3d-3db2-4dd0-8dbe-0cc5e59facf3?# 《mBlock 5 Extension Builder Online Help》).