Optolong full frame filter installation

[Rowancummins]

Hi I have just purchased a optolong filter for my canon 6d I have some questions about the installation I know you have to enable mirror lock up and then disable it when installed but do you have to shoot in live view or can you come out of live view when shooting as the canon 6d has a pink light that gets emitted across the sensor wen it’s been modified when shooting in live view 

 

and a question about removing the filter I’ve seen people remove it and the mirror comes down could you turn mirror lock up back on to remove it so it doesn’t go down as the filter is being removed  

 

and when I turn the camera off with the filter in should I turn the camera back on enable mirror lock up and remove the filter so the mirror doesn’t fall as I’m removing the filter

 

thanks