How to save my modified tables.sds in Rick’s Tools

I've been trying to modify the table.sds for Mafia 2 in Rick's Tools, to make weapons more powerful and people weaker, but i have a issue. When i want to save my changes the save button is always greyed out.


 




 


 




There has been another thread about this problem, but it's all in Russian so whether they fixed the problem or not i don't know...




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I hope someone has the solution to my problem, thanks in advance.