======Toolbar======
We designed and consider the main menu mostly self-explanatory, so only the toolbar icons are explained here in greater detail:

{{en:media::toolbar.png}}

The toolbar is used to select the most frequently used functions and is located below the main menu.

Let the mouse hoover over an icon for a short description of its function. All icon functions are also available through the main menu.

====Functions (from left to right)====
===file functions===
**//(Functions from the "File" menu)//**
  * {{en:media::icon:icn_mono_document_empty_32x32.png}}Create New File (Loading Data)
  * {{en:media::icon:icn_mono_folder_page_32x32.png}}Load/open existing file in new tab
  * {{en:media::icon:icn_mono_folder_win_32x32.png}}Load/open an existing file in a completely new window
  * {{en:media::icon:icn_mono_refresh_32x32.png}}Reread current file, unsaved changes will be discarded
  * {{en:media::icon:icn_mono_disk_32x32.png}}Save current file
  * {{en:media::icon:icn_mono_disk_go_32x32.png}}Save current file under a (new) name

===Functions for the current file (Loading Data)===
**//(Functions from the "Loading data" menu)//**
  * {{en:media::icon:icn_mono_file_pdf_32x32.png}}Open the PDF document provided by the standardization organization (e.g. CIP).
    * **Note** that PDF documents are only downloaded from the organization's website (after manual confirmation) if the document has not been already downloaded in the past and stored locally.
    * **Once you have downloaded/displayed** the pdf document, it will be stored in the folder //**/pdf**// in the GRT program directory and will be available the next time you call it up.
  * {{en:media::icon:icn_mono_cartridge_drawing_32x32.png}}Open the large view of the cartridge drawing. **The cartridge drawing** shows the **original specification** including all **original dimensions**.
  * {{en:media::icon:icn_mono_textdoc_dia_32x32.png}}[[en:doku:report|Results-Report]] open (printout and customization possible).

===General tools===
**//(Functions from the "Extras" menu)//**
  * {{en:media:icon:icn_mono_caliber_db_32x32.png}}[[en:doku:dbcaliber|Caliber Database]]
  * {{en:media:icon:icn_mono_projectile_db_32x32.png}}[[en:doku:dbprojectile|Projectile Database]]
  * {{en:media:icon:icn_mono_propellant_db_32x32.png}}[[en:doku:dbpropellant|Propellant Database]]

  * {{en:media::icon:icn_mono_calculator_32x32.png}}[[en:doku:unitcalculator|Convert units of measurement]]
  * {{en:media::icon:icn_mono_table_heatmap_32x32.png}}[[en:doku:burnratechart|Table of propellant relative burn ratio]]
  * {{en:media::icon:icn_mono_laufprofil_32x32.png}}[[en:doku:assist-aeffcalculator|Calculator for effective cross section of the caliber/barrel]]
  * {{en:media::icon:icn_mono_cannon_32x32.png}}[[en:doku:bpcalculator|Black powder calculator]]
  * {{en:media:icon:icn_mono_target_holes_32x32.png}}[[en:doku:shotgroup|Shot group analysis]]
  * {{en:media:icon:icn_mono_obt_32x32.png}}[[en:doku:obtconcept|Optimal Barrel Time (OBT)]]
  * {{en:media:icon:icn_mono_chart_propellant_32x32.png}}[[en:doku:ppsearch|Parametric powder search and generic tolerance synthesis]]
  * {{en:media:icon:icn_mono_cartridge_draft_32x32.png}}[[en:doku:cartridgedesigner|Cartridge-Designer]]
===Plugins===
The standard toolbar icons are followed by the icons of the plugins in theyr load order.