How to use “Program Edit” feature in PlanetCNC TNG software

Sometimes our NC program does not perform quite as we plan. Many times just a small correction of g-code does the trick and for this we need to edit our NC program. 
For this purpose you can use built-in “Edit” feature. 

Edit feature is located under Program menu.

 

When Edit feature is active, window is opened with currently imported g-code:

 

You can directly edit your g-code within the “Edit” window:

 

With “Verify” button you verify edited g-code in case of any errors. If error is located, message is displayed with error description and number of program line that causes error:

 

With “Update” button edited g-code is loaded into g-code window.