Ability to use AGs and sliders while controlling an astronaut that is not in a seat

One problem with making space stations, capsules, and bases with interiors is that when walking around inside as an astronaut, you can not use activation groups and sliders to open doors, turn on lights, or anything else. You have to sit in a chair or switch to the craft. I think when an astronaut is in range of a craft, it should be able to use the activation groups and sliders of the craft.