### The Edit Screen

MathCast's main screen is the Edit Screen. Here you can type-in, edit, and manage your equations.
The Edit Screen is divided into a few main sections, as shown in this picture:

#### The Equation List Pane

Most of the screen is taken up by the Equation List Pane. Using MathCast, you would usually edit more than one equation at a time. All of the equations you edit are listed in this pane.
Left clicking on an equation selects that equation. A selected equation is outlined by a pink box surrounding it. Once selected, you can change what is written in the equation, copy it, delete it, and so on.

#### Equation Buttons Pane

These are some of the most used actions that you would take:

- Copy - Copies the selected equation to clipboard. If a few equations are selected, MathCast will internally copy all the equations, but only the first one will get copied to the clipboard.
- Cut - Copies the selected equation to the clipboard and deletes the equation from the list. If a few equations are selected, MathCast will internally copy all the equations, but only the first one will get copied to the clipboard.
- Paste - Replaces the selected equation (or equations) with the previously copied equation (or equations).
- Delete - Erases the selected equation (or equations) and removes it from the list.
- Move Up - Moves the selected equation (or equations) up one place on the list.
- Move Down - Moves the selected equation (or equations) down one place on the list.
- Add - Creates a new equation and adds it to the end of the list.
- Insert - Creates a new equation and inserts it at the selected equation on the list.
- Preview Mathcasting - Shows a preview of the XHTML page associated with the equation list. See Mathcasting MathML with XHTML later in this Documentation.

#### The Rapid Mathline

The Rapid Mathline is where you can type-in and re-edit equations. This is all explained in detail in the next section, titled The Rapid Mathline.

#### The Lowlist

The Lowlist includes some commonly used characters that you can quickly add to the Mathline.
You can edit "lowlist.dat" file, located in the "Interface" folder and change the characters, if you wish.

#### Equation Name

Each equation can be named. Pressing on the name link will let you edit the name in the Rapid MathLine.

#### The Main Menu for the Edit Screen

##### The File Menu

The menu actions here operate on the entire current equation list.

- New - Closes the current equation list and starts a new one.
- Open - Closes the current equation list and opens an equation list from a file on the hard drive or other storage devices.
- Save - Saves the equation list on disk with the filename of the current working file. If a working filename has not been specified beforehand, you will be prompted to select a folder and a filename.
- Save as - Prompts you for a folder location and filename and saves the equation list to disk.
- Insert - Opens equation list from disk and inserts it into the current list, replacing the selected equation.
- Append - Opens equation list from disk and inserts it into the current list, at the end.
- Download - Closes the current equation list, and downloads an equation list from another IP address. See the section titled Downloading Equation Lists, later in this Documentation.
- Browser Screen - Switches to the Browser Screen.
- Welcome Screen - Switches to the Welcome Screen.
- Exit - Exits MathCast.

##### The Edit Menu

The Edit Menu operates on either the equation list or the Rapid Mathline; it depends on where the keyboard focus is at the time.
The menu actions here are similar to other applications. The "Settings" menu item takes you to the Settings Screen.
There are also options for selecting multiple equations. "Select Few" lets you select a number of equations. Enter the equation numbers in the Rapid Mathline to select.

##### The Equation Menu

The menu actions here operate on single equations within the current equation list.

- Add Equation - Creates a new equation and adds it to the end of the list.
- Insert Equation - Creates a new equation and inserts it one place before the selected equation on the list.
- Import Equation - Imports an equation to the list from a file. The equation replaces the selected equation.
- Export Equation - Exports the selected equation to a file.
- Move Up - Moves the selected equation up one place on the list.
- Move Down - Moves the selected equation down one place on the list.

You can also change the style of the selected equation from Block to Inline. See The Settings Screen for a description of the differences.
You can also change the colors or the size of the selected equation.

##### The Math Menu

This menu shows all the symbols, operators and functions supported by MathCast. Selecting an item from this menu, will add the according text to the Rapid Mathline.

##### The Help Menu

This is a standard help menu. For your convenience, there is also a shortcut to the calculator and to a unit converter.