When someone works with computer and does not have proper knowledge of scripting or programming or simply the person does not know enough of features of the software or hardware, the person can start doing tedious work that consists of repeating one sequence of actions. Few examples:
changing a date in some documents – instead of using the search & replace feature of the text editor, the person has to read the text, look for the date to be replaced and rewrite that manually.
writing nearly the same letter for many people — edit text, click Print, repeat (instead of automating that).
adding a title text to a large set (hundreds or more) of videos — open their favorite GUI video editor, add the text, render, wait, repeat (instead of using some kind of batch processing, either as part of the video editor or using tool specialized to batch processing like ffmpeg).
What can I call that tedious work with computer, which arises from not having (or not knowing) a program for performing the task?
The answer should be one word, but I can use multiple words if needed.