Hello Hhonza501,
Yes, you can launch 2 or more instances of Spike on a single computer. For the BB60C, each Spike instance will alert you that there is more than 1 device connected to the PC and you will need to select a device from the File->Connect menu to open it. When you launch the second Spike instance, just ensure you pick non-opened device. If you try to open a device twice, the second application will ‘steal’ it from the first. (The first instance will see a device disconnect)
Keep in mind 2 or more Spike instances share presets and preferences.
With the BB60C, two or more instances of Spike can consume a lot of resources. You may run into issues on low power ultrabooks or similar. I wouldn’t expect any issues on a standard desktop i5/i7.
Let me know if you have additional questions.
Regards,
Andrew