Different from the license for a standalone switch, a stack license must contain license control items for all stack members. To install a license for a stack system, I need to know how to activate the license file in the stack system. I use the HUAWEI S5700 Switch, and I need a guideline in details. The official technical guide is here: https://support.huawei.com/enterprise/en/doc/EDOC1100195306.