address https://github.com/SenchaArchitect/Extensions/commit/b1b932d60595b286ded327a0f71ed33f56b4628e#commitcomment-5035809
address confusion in https://github.com/SenchaArchitect/Extensions/commit/b1b932d60595b286ded327a0f71ed33f56b4628e#commitcomment-5035862

variable name should've been comboBoxes, not comboConfigs