[Solved] Unable to install on OSX 10.13

permissions
macosx
security
execution

#1

Hello,

I asked my son who is into animation to try and download and install synfig on OSX 10.13
We can download the dmg file but it will not install.
Message:
Synfig Studio can’t be opened because it is from an unidentified developer. Your security preferences allow installation of only apps from the app store


#2

We found solution
goto System Preferences
goto Security & Privacy
unlock padlock icon lower left corner
click “open anyway”