I’m trying to figure out what to use when I want to use a linear actuator for 7 preset positions. These positions must be aquired by 7 unike buttons.
Can you please point me in the right direction 
Hello.
The Jrk G2 Motor Controllers are the most appropriate controllers we have for that kind of application. They can do position control of a linear actuator with analog feedback, but they do not have direct support for 7 button inputs like you described. One way to get that behavior would be to use a separate microcontroller (like an Arduino or one of our Arduino-compatible A-Star controllers) to process the buttons and command the Jrk to send the actuator to an appropriate position via TTL serial or I2C. We have a Jrk G2 library for Arduino to make the communication easier.
Brandon