Re-fits the clicked region. Rarely used, only if you suspect that a sub-optimal (unstable) fit is found, where the optimum solution changes when you repeatedly fit the region.

 

Re-fits the clicked region with automatic peak insertion. Used when a sub-optimal fit is found with a missing peak, but the position of the missing peak is uncertain, and you want to delegate the job of peak position determination to the fitting algorithm.

 

Inserts a peak into the region, at the clicked position. Used when a sub-optimal fit is found with a missing peak, and the position of the missing peak is suspected by the user.

 

Deletes a peak from the region, which is located at the clicked position.

 

Deletes the clicked region with all of its peaks.

 

Splits a region at the clicked position into two half regions.

 

Merges two or more regions. To use this tool, click over the first region and drag the mouse cursor to the last region to be merged (do not release the mouse button).