How to avoid messing up the IDE for Arduino products with Adafruit products

Hello, I have been using Arduino Mega 2560 with lots of libraries for several projects. I am trying out Gemma from Adafruit. According to their website, they made some modifications to the Arduino IDE so that it works like a mini-Flora.

It seems that I need to following the steps below and modify some settings.

I am concerned that doing so might mess up with the IDE I have been using with the Mega 2560. What suggestions do you have? Is it better to install two versions of the IDE on the same Mac? As far as I recall, after I downloaded a version of the IDE from the Arduino website and moved it to the Application folder, the previous version gets replaced.

It is only using the additional boards manager URLs.

That wont break the IDE although the destructions are for older IDE's.
Your other boards will also still be available.

Ballscrewbob:
It is only using the additional boards manager URLs.

That wont break the IDE although the destructions are for older IDE's.
Your other boards will also still be available.

Thanks. Do you mean I just follow the steps and after making the changes shown on the URL, I can use the same IDE for both Arduino boards and Adafruit boards?

When I update the IDE to a newer version later, do I have to repeat the steps again?

newto_arduino:
Thanks. Do you mean I just follow the steps and after making the changes shown on the URL, I can use the same IDE for both Arduino boards and Adafruit boards?

Yes, I recommend the "Super Easy Installation (Recommended)" method instead of "All-in-one Installation (not recommended!)" or "Manual Installation (super advanced!)".

newto_arduino:
When I update the IDE to a newer version later, do I have to repeat the steps again?

Not if you use the "Super Easy Installation (Recommended)" method. If you use the "All-in-one Installation (not recommended!)" method then you can't update the IDE unless Adafruit releases a new "All-in-one" package, which they haven't done for about a year so they probably won't. You will need to redo it if you use the "Manual Installation (super advanced!)" method though if the person who wrote those instructions was smarter you wouldn't have to because they should have said to install it to the sketchbook instead of the IDE folder.

pert:
Yes, I recommend the "Super Easy Installation (Recommended)" method instead of "All-in-one Installation (not recommended!)" or "Manual Installation (super advanced!)".
Not if you use the "Super Easy Installation (Recommended)" method. If you use the "All-in-one Installation (not recommended!)" method then you can't update the IDE unless Adafruit releases a new "All-in-one" package, which they haven't done for about a year so they probably won't. You will need to redo it if you use the "Manual Installation (super advanced!)" method though if the person who wrote those instructions was smarter you wouldn't have to because they should have said to install it to the sketchbook instead of the IDE folder.

Thanks. I already installed 1.6.11 few weeks ago. Don't recall which method I used. Shall I uninstall and reinstall using the "Supper Easy Installation"?

"Super Easy Installation" doesn't install the Arduino IDE. You need to have the Arduino IDE already installed. "Super Easy Installation" just installs support for the Adafruit boards in the Arduino IDE. If you want to use the Arduino IDE 1.6.11 that you already have installed that's fine. Just follow the instructions here:

pert:
"Super Easy Installation" doesn't install the Arduino IDE. You need to have the Arduino IDE already installed. "Super Easy Installation" just installs support for the Adafruit boards in the Arduino IDE. If you want to use the Arduino IDE 1.6.11 that you already have installed that's fine. Just follow the instructions here:
Arduino 1.6.x IDE | Adafruit Arduino IDE Setup | Adafruit Learning System

Thanks. Which version of the Arduino IDE do you recommend? I think I read awhile ago that 1.8.x had some issues.

1.8.0 has a problem with the fonts not being very readable on Windows. 1.8.1 seems pretty good. I can't think of any new issues. I would recommend you to use 1.8.1. I'm pretty sure it's better in some ways than 1.6.11.

Thanks. I am using Mac OS. Is 1.8.1 on the Mac stable?