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Stop words manager
The benefit of using stop words is indisputable. These words enable to carry out the search only by words with a real subject value which makes anlysing the documents to determine their similarity more trustworthy due to focusing on their content, not mere concurrence of symbols. Read more about stop words in the "What do you need for a high-quality search?" paragraph.Undoubtedly, maximum benefit is achieved when the list of stop words is compiled most correctly. On the one hand, a small number of stop words will not ensure filtering at a due level, on the other hand, excessive effort to enlarge the stop words dictionary can lead to filling it with meaningful words, which will lead to reverse effect of using stop words.
Lists of stop words are edited with the help of Stop words manager. You can open it in the following ways:
- Menu "Options" - "Stop words manager"
- Click the button
in the managers tool bar if it is activated. This results in emerging of the following window:
As you can see in the picture, the manager's working space is divided into two parts. On the left there is a range of languages, each with a number of words, e.g. the languages are merely groups combining the words that are similar in a certain characteristic (in this case by language). When one of the languages in the list "Languages" is selected, all the words belonging to this language will be shown in the "Stop words list" on the right.
Button
enables creating a new language. To do this, enter the name of the language in the emerging window. Butoon
enables changing the name of the language by entering a new name in the emerging window. 
- This button deletes the selected language, as well as all the stop words, attached to it. A deleted language cannot be recovered! The following set of buttons is designated for work not with languages, but with particular words.
- On pressing this button a box emerges, into which you can enter a new stop word. Moreover, the entry field in this box is multi-line, so you can enter any number of words, separating them with a space. Correspondingly, all the new words will be added to the language, currently selected in the list on the left. In the window emerging on entering the words, there is a check-box "Use stemmimg forms". Checking this box will enable taking into consideration not only the entered stop word, but also all its wordforms, which will be considered equal in value during the search. 
- enables editing the selected word. This word is opened in the same window as by creating a new word, which enables changing not only the text by editing, but also the state of the "Use stemming forms" check-box. 
- deletes the selected word from the stop words list. No "confirm delete" is requested! 
- exit stop words manager.
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