Undo and Redo
There are two types of Undo and Redo, depending strictly on what
it is you are trying to do. In the normal usage of Undo - Redo
when you are working with text in the main window, you can use
Undo - Redo normally by going to Edit > Undo or Edit > Redo,
although using Control - Z to Undo and Control - Y is usually
the easiest. (Note this can vary between languages!)
When you are doing a Search - Replace option, Undo - Redo will
apply the operation only once. If working with a large text,
attempting to Undo - Redo multiple times could easily bog down
the computer, and consume excess memory. That said, future
versions of Tachufind will likely look in to a way of
determining how much memory is available, the length of the
document, and improve capability.