Is it possible to add keyword to the XOVI databases?
No, keywords suggestions are not added to the XOVI database.
If the data in XOVI database would be changed, the statistics will not be comparable and for example, the value of "Ranking Keywords" will raise, without any actions performed.
Only general keywords that are being searched for often might be added to the database by XOVI.
To add own monitoring keywords, follow the instructions from XOVI documentation: