>>312
HideselectedSetクラスからexecute関数を持ってきてすこし変えればいけるかな
試してないけど

class UnhideSet(bpy.types.Operator):
"""Unhides selected objects from render&viewport"""
bl_idname = "object.unhide_set"
bl_label = "Unhide Objects from render&viewport"

def execute(self, context):
for obj in context.selected_objects:
obj.hide_viewport = False
obj.hide_render = False
return {'FINISHED'}