Please support editing items directly in the master list (product dictionary)

At present it is too hard to edit the master list (product dictionary). One can only delete items or change their color. My main desire is that this be made much easier.

A closely related problem is that when I add a new item (not already in the product dictionary) I often find I make a mistake and want to change it (maybe I misspelled something, or left out an important word). That is the main reason I ever want to edit the master list.

Here are some thoughts on how these things could be improved.

- Link items between shopping lists and the master list: if one edits an item in a shopping list (changing the text) it also affects the corresponding item in the master list.

- In the master list, hold on an item to change its text. Existing copies in shopping lists would automatically be updated.

- In the master, add a triangle at the right or swipe right-to-left to bring up an edit pane. One could change the text or color in that pane.

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Note my related suggestion to add a search field to the master list. I feel these are closely linked. If you implement the first suggestion then you could probably skip all the other suggestions.