Use more han two activ clients at the same time.

Our

family will soon consist of two photographers where only I have an ongoing subscription of Adobe products, Lightroom and Photoshop for SEK 120 / € 1.2 per month. The family's total needs require 2 computer clients at the same time, regardless of the time of day. Can we expand my subscription to 3 simultaneously active units? If possible (it was previously possible to have a family subscription of 5 units but do not know if it is still available as a product sheet?) How do I proceed?