Need help in adding multiple servers to single dashboard


We are using combination of telegraf+influxdb+grafana in our environment for monitoring.We are able to add nodes in grafana from influxdb as datasources.However we are planning to segregate dashboard like cpu,mem and filesystems each separate dashboard.Now the question is i have created dashboard for memory for single node and for adding other nodes we are just duplicating manually from grafana and changing the node name.Is it possible to add multiple nodes in single dashboard just by importing via excel or any possibilities?