Database
[{methods:[{subcategories:[{actions:[{title:"Inspection"}]}]},{subcategories:[{title:"1"}]},{title:"2"}]}]
Query
db.collection.update({"methods.subcategories.actions":{$exists:true}},{"$set":{"methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem1]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e0012","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem2]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e0014","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem3]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e0016","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem4]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e0018","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem5]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e001a","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem6]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e001c","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem7]._id":"0af4cd2e-78cb-109b-8178-d5a7ba0e001e","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem8]._id":"0af4cd2e-78cb-109b-8178-d5a7ba260020","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem9]._id":"0af4cd2e-78cb-109b-8178-d5a7ba260022","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem10]._id":"0af4cd2e-78cb-109b-8178-d5a7ba260024","methods.$[methodElem].subcategories.$[subCatElem].actions.$[elem11]._id":"3b7205c1-8282-4b63-8121-b82aacd7ca67"}},{"arrayFilters":[{"methodElem.subcategories":{$exists:true}},{"subCatElem.actions":{$exists:true}},{"elem1.title":"Inspection"},{"elem2.title":"Search"},{"elem3.title":"Poll"},{"elem4.title":"Receipt of Written Explanations"},{"elem5.title":"Retrieval of Documents"},{"elem6.title":"Sampling (samples)"},{"elem7.title":"Instrumental examination"},{"elem8.title":"Trial"},{"elem9.title":"Expertise"},{"elem10.title":"Experiment"},{"elem11.title":"Request for documents that, in accordance with the mandatory requirements, must be located at the location (carrying out activities) of the controlled person (its branches, representative offices, separate structural divisions) or the object of control"}]})