after making changes at add-in, for that runtime accepted the changes, I need to restart runtime: delete that add-in form the list, after rebuild and deploy, I improting that add-in once more, saving changes, generate runtime files, copy that files to the server vs runtime, and start runtime. Only after that steps I have working add-in at Runtime.

Do I do something wrong? How to reload without restart?
I have one global project, one main project, and 64 subproject, and sub projects of sub projects. And I need to change add-in in lowest level in projects tree