Ignition maven module : post goal with multiple gateway

As mentionned in the SDK help :

The post goal :
As of ignition-maven-plugin v1.0.8, there is also the post goal. The post goal takes the modl goal one step further and acts as helper goal to “post” your packaged modl file to your running developer gateway. Note: You’ll need to specify a in the plugin configurations if you are not using the default (localhost:8088).

Can we post a module to 2 gateways ???
When we develop module with GAN support, we need to install module on 2 gateway for test purpose and a post goal with a list of gateway will help us to gain time !

You can execute a maven plugin multiple times by defining another section with a different

<plugin> <groupId>com.inductiveautomation.ignitionsdk</groupId> <artifactId>ignition-maven-plugin</artifactId> <version>1.0.11</version> <executions> <execution> <id>post1</id> <phase>deploy</phase> <goals> <goal>post</goal> </goals> <configuration> <gatewayAddress>${local-gateway-url1}</gatewayAddress> <moduleFile>${basedir}/target/${project.artifactId}-${project.version}-unsigned.modl</moduleFile> <moduleName>${project.artifactId}-${project.version}</moduleName> </configuration> </execution> <execution> <id>post2</id> <phase>deploy</phase> <goals> <goal>post</goal> </goals> <configuration> <gatewayAddress>${local-gateway-url2}</gatewayAddress> <moduleFile>${basedir}/target/${project.artifactId}-${project.version}-unsigned.modl</moduleFile> <moduleName>${project.artifactId}-${project.version}</moduleName> </configuration> </execution> </executions> </plugin>

Ok (interesting) and The goal “post” is only for unsigned module or if I have a signed module, I can use it with ?