Thanks for the fast answer, i really missed the consistent fields.
By the way, in this topic How to import index-pattern in kibana 6 using API? import/export api was discussed. Could you also provide me an explanation please: if i have previously exported file with all saved objects (searches, dashboards, indecies) export.json, have i an ability to import an entire JSON file on another server by the POST curl request or i should Post it one by one according to its type (dashboard, searches and so on). If yes, answer please how? And what about mapping in this case? it seems, i should previously post index mapping.