GWT 2.7 maven project integration with eclipse

I found good starter of GWT 2.7.0 application that work with maven. Here is repository

Unfortunatelly owner/creator don't use eclipse, so he can help me.

I would like to have this project to work with eclipse and to be well integrated (like official ant project- stockwatcher f.e.).

My problem is that I can't run this project in eclipse in super dev mode. The only options I have is: [ f.e. I can run install witch will compile project. But I don't have option to run in SuperDevMode

The second problem is that I can't add GWT sdk to app using right mouse button on project -> Properties as You can see here:

I can run this project using maven in linux konsole, but I can't do this by clicking in eclipse.

Please help

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EDIT

My project structure in eclipse after import from git repository:

Here is main pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project
        xmlns="http://maven.apache.org/POM/4.0.0"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>de.hpfsc</groupId>
    <artifactId>parent</artifactId>
    <packaging>pom</packaging>
    <version>1.0.0-SNAPSHOT</version>

    <modules>
        <module>server</module>
        <module>shared</module>
        <module>web</module>
    </modules>

    <properties>
        <gwtVersion>2.7.0</gwtVersion>
        <webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <tomcat.webport>8082</tomcat.webport>
        <tomcat.ajpport>8182</tomcat.ajpport>
        <tomcat.context>/parent</tomcat.context>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-servlet</artifactId>
            <version>${gwtVersion}</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-user</artifactId>
            <version>${gwtVersion}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.7</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.0.0.GA</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.0.0.GA</version>
            <classifier>sources</classifier>
            <scope>test</scope>
        </dependency>
    </dependencies>


    <build>

        <defaultGoal>clean install  tomcat7:run-war-only</defaultGoal>

        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>gwt-maven-plugin</artifactId>
                <version>${gwtVersion}</version>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.3</version>
            </plugin>

                <!-- IDE -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-eclipse-plugin</artifactId>
                <version>2.7</version>  <!-- Note 2.8 does not work with AspectJ aspect path -->
                <configuration>
                    <downloadSources>true</downloadSources>
                    <downloadJavadocs>false</downloadJavadocs>
                    <wtpversion>2.0</wtpversion>
                    <additionalBuildcommands>
                        <buildCommand>
                            <name>org.eclipse.jdt.core.javabuilder</name>
                            <arguments>
                            </arguments>
                        </buildCommand>
                        <buildCommand>
                            <name>com.google.gdt.eclipse.core.webAppProjectValidator</name>
                            <arguments>
                            </arguments>
                        </buildCommand>
                        <buildCommand>
                            <name>com.google.gwt.eclipse.core.gwtProjectValidator</name>
                            <arguments>
                            </arguments>
                        </buildCommand>
                    </additionalBuildcommands>
                    <additionalProjectnatures>
                        <projectnature>com.google.gwt.eclipse.core.gwtNature</projectnature>
                    </additionalProjectnatures>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.0</version>
                <configuration>
                    <path>${tomcat.context}</path>
                    <port>${tomcat.webport}</port>
                    <ajpPort>${tomcat.ajpport}</ajpPort>
                    <systemProperties>
                        <JAVA_OPTS>-XX:MaxPermSize=256m</JAVA_OPTS>
                    </systemProperties>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

The project is composed of 3 submodules. When importing the project into Eclipse, you should then have 4 projects in your workspace: parent, shared, server and web.

parent should be a simple project (this is why you don't have many options in Run As…), and shared, server and web should be Java projects.

The web project is where GWT client code is (in addition to shared), and the GPE should automatically configure it as a GWT project, with the GWT SDK taken from the Maven dependencies (so you won't have a GWT "library" –in Eclipse parlance– in your dependencies, only the JRE/JDK and a "Maven Dependencies" library).
This is also on that web project that you'll Run As… → Web Application.