<< Click to Display Table of Contents >> Navigation: MechDesigner Reference & User Interface > FAQs and 'How to...?' > General FAQs > How to ? > How to edit a Parameter in a DialogBox 
To build a model:
STEP 1: Add an element 
 see Menus and Toolbars 
STEP 2: Open the element's dialogbox 
 see How to open a DialogBox 
STEP 3: Edit the element's parameters 
In this example, the parameter is Dimension in the Dimension dialogbox, and the the parametervalue is 300.
In the image above, I have colored the three areas of the Dimension parameter box:

There are three different methods you can use to edit a parameter:
Dimension dialogbox 
Enter a value directly: 1.Use your keyboard to enter a value in the databox 2.Press the Enter key ( ) on your keyboard to update parameter to the new value You must press the Enter key. 
Equation in Dimension box 
Enter a value as a symbolic equation: 1.Use your keyboard to enter a symbolicequation in the databox 2.Press the Enter key ( ) on your keyboard to update to the new value You must press the Enter key. 
Symbolic parameters for an Equation: •Simple Arithmetic: +, –, *, /; •Indices: ^, Sqrt(); •Trigonometric (Angles are Radians): pi, Sin(), Cos(), Tan(), Sinh, Cosh, Tansh, ArcSin(), ArcCos(), ArcTan2( ; ) 
SpinBox tool 
SpinBox arrowhead buttons (in the CYANBOX) Top & Left arrowhead : to subtract (–) the parametervalue by the SpinIncrement Top & Right arrowhead : to add (+) the parametervalue by the SpinIncrement Bottom & Left arrowhead : to divide (÷) by the SpinIncrement Bottom & Right arrowhead : to multiply (×) by the SpinIncrement 
EXAMPLE: Edit the ParameterValue •Click the Top & Left arrowhead: Subtract the SpinIncrement(1) from the parametervalue •Click the Top & Right arrowhead two times: Add the SpinIncrement(1) to the parametervalue 2 x Edit the SpinIncrement •Click the Bottom & Left arrowhead: Divide the active SpinIncrement by 10 •Click the Bottom & Right arrowhead two times: Multiply the active SpinIncrement by 10 2 x WARNING: The model rebuilds each time you click the top arrowhead buttons in the SpinBox tool. If the model is complex, there is a long time to update the model. 
Doubleclick to hide SpinBox 
< > DoubleClick 
Doubleclick to hide SpinBox 
Doubleclick, with your mousepointer in the databox, to hide the SpinBox. Doubleclick the databox again to show the SpinBox. 
To see the Zero / Round / Paste / Copy menu:
