IDE Documentation ... Reference documentation Creating the application Common editor elements and editor actions Common actions Changing the name of an element Declaring variables Declaring external variables by dragging and dropping global variables into POUs Declaring a Boolean local variable fast Modifying variables Changing name, data type and initial value of a declared variable Changing the name of a declared variable Changing the data type of a declared variable Entering or changing the initial value for a declared variable Entering or changing the description for a declared variable Entering or changing the comment for a declared variable Deleting already declared variables