remove doubles etc. in 2.6 // im fine in 2.49

I cannot find how to the set the step for remove doubles in 2.6. I’m fine with 2.49 but need to get used to 2.6.
Where are all the edit tools as in 2.49?

This sort of thing?

What i usually do is select a vertice in the object that i know is good, tap L to select all the vertices connected to that one, H to hide it, and then X to delete all the visible doubles…
That link might be easier, but thats my two cents

After doing the remove double operation either look in the tool panel (T key) or press f6 to adjust settings. It’s the same for pretty much every action in 2.5+

Thanks @m9105826