<div class="project-nav">
  <div class="container">
    <div class="row">
      <div class="project-nav-button" project-home-button></div>
      <div class="project-nav-button" project-back-button></div>
      <div class="project-nav-button" project-forward-button></div>
      <div class="project-nav-project-title">{{displayedProject.name}}</div>
    </div>
  </div>
</div>

<div class="project-nav">
  <div class="container">
    <div class="row">
      <div class="project-nav-button" project-home-button></div>
      <div class="project-nav-button" project-back-button ng-show="projects.length > 1"></div>
      <div class="project-nav-button" project-forward-button ng-show="projects.length > 1"></div>
      <div class="project-nav-project-title">{{displayedProject.name}}</div>
    </div>
  </div>
</div>

Hide nag buttons if there aren't multiple projects
Hide nag buttons if there aren't multiple projects