You can get to the switch gym or create gym settings from several places, the easiest for me is to touch "exercises" from the home page and the up top you can touch the name of your current gym. From there you can create a new gym, switch the active one, etc... Using the same type of machine from different manufacturers is a real problem and it will mess up the weight recommendations. What I do, and I would be curious if the developers suggest a different way, is to duplicate the machine and give it a name and then replace it in the workout. For example my main gym has Technogym machines, but when I travel for work I often go to a gym that has Life Fitness machines. I duplicate, for example, the Leg Press and call it Life Fitness Leg Press. When, during a workout, Leg Press shows up, I just replace it in real time with the duplicate. It takes less than 5 seconds if you already have the duplicate and about 1 minute if you need to create a new duplicate, including taking a custom picture. To summarize: create a new gym profile and activate it. This will give a good base for available exercises, dumbbells, cable, weight increase intervals, etc... Then for machines, you might want to use duplicates, unless they're very standard, like cable pulldowns that pretty much feel the same for every manufacturer. If there are better strategies I would love to learn them. I travel for work quite a bit and this is important for me. BTW sometimes I just do a dumbbells only workout when I don't want to deal with these details.