def is_enabled(self, group=-1, index=-1):

        return bool(load_settings().get("use_selections", True)) and self.view_has_selections(group, index)
system.methodSignature('add') => [double, int, int]
dataset/ETHPy150Open facelessuser/EasyDiff/easy_diff_basic.py/EasyDiffSetLeftSelectionCommand.is_enabled--crossover with--dataset/ETHPy150Open kleientertainment/ds_mod_tools/pkg/win32/Python27/Lib/SimpleXMLRPCServer.py/SimpleXMLRPCDispatcher.system_methodSignature