diff --git a/Makefile b/Makefile
index b537652..4803ac9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,28 @@
-lint:
+.PHONY: help lint test doc
+.DEFAULT_GOAL := help
+
+help:
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+pre-push: lint test ## Run golang lint and test
+
+lint: ## Run golang lint using docker
 	go mod download
 	docker run --rm \
 		-v ${GOPATH}/pkg/mod:/go/pkg/mod \
  		-v ${PWD}:/app \
  		-w /app \
-	    golangci/golangci-lint:v1.53.3 \
+	    golangci/golangci-lint:v1.54.2 \
 	    golangci-lint run -v --modules-download-mode=readonly
 
-test:
-	GOARCH=amd64 go test ./...
\ No newline at end of file
+test: ## Run tests
+	GOARCH=amd64 go test ./...
+
+doc: ## Run doc server using docker
+	@echo "Doc server runs on http://127.0.0.1:6060"
+	docker run --rm \
+        -p 127.0.0.1:6060:6060 \
+        -v ${PWD}:/go/src/github.com/evsamsonov/trengin \
+        -w /go/src/github.com/evsamsonov/trengin \
+        golang:latest \
+        bash -c "go install golang.org/x/tools/cmd/godoc@latest && /go/bin/godoc -http=:6060"
diff --git a/trengin.go b/trengin.go
index b338730..bbb38a9 100644
--- a/trengin.go
+++ b/trengin.go
@@ -288,6 +288,8 @@ func (p *Position) RangeExtra(f func(key interface{}, val interface{})) {
 
 // OpenPositionAction is an action to open a position
 type OpenPositionAction struct {
+	SecurityBoard    string // Trading mode identifier. Example, TQBR
+	SecurityCode     string // Example, SBER
 	FIGI             string // Financial Instrument Global Identifier
 	Type             PositionType
 	Quantity         int64