## View and Operations

### Introduction

#### Starting Mass++

1. Double-click the (Mass++) icon on the desktop to start Mass++.

   - You can also start Mass++ by clicking [Start] and then selecting [All Programs] > [Mass++] > [Mass++].

#### Exiting Mass++

1. Select [File] in the menu bar and then select [Exit].

### Icons

#### List of Toolbar Icons

  The Select Files dialog appears and you can select the files to open.

  The Close dialog appears and you can select the files to close.

  Spectra/chromatograms will be displayed in Single display mode.

  Spectra/chromatograms will be displayed in Overlapping display mode.

  Spectra/chromatograms will be displayed in Stacked display mode.

  The Database dialog appears.

  The Sample User Properties dialog appears.

  The previous spectrum is shown.

  The next spectrum is shown.

  The precursor ion spectrum is shown.

  The product ion spectrum is shown.

  The heatmap is shown.

  The 3D display is shown.

  The Detect Peaks dialog appears.

  The peak areas turn yellow and become editable.

  The Background Subtract dialog appears.

  The Baseline Subtraction dialog appears.

  The Filter Waveform dialog appears.

  The RT Align Sample dialog appears.

  The Filter Spectra dialog appears.

  The Options dialog appears.

  Mass++ Help appears.