Keep pushed an element during N seconds

Robot Framework
1

Hello,

I need to click during some seconds (10-15) a button in a web. Any idea about how can do it?

Thank you in advance.

2 
Mouse Down    ${mylocator}
Sleep    10 seconds
Mouse Up    ${mylocator}
3

Thank you Hélio,

I was searching something like a action chain for Click Element but, definitely your solution is better.