Cannot remove Ideal standard Shower knobs

[Lawro]

I have the pictured ideal standard shower knob and need to remove as I have got a leak. There is no obvious way to remove, has anyone come across this previously and knows how to remove? I "think" it might be to lever the front face plate, but don't want to risk damage if I am wrong

 

[oldbuffer]

1. Have a look at https://www.showerspares.com/ideal-...tandard-active-faceplate-and-handles-a4105aa/
2. Looks as if the inner part of the knob with its "wrap around" part going down the side of the knob, slides out to reveal a screw. Removing the screw allows the knob to be removed.
3. You will then need to remove the chrome wall plate and more bits and pieces before the cartridge is revealed.

 

[Lawro]

Thanks, That is definitely the item that I have. Looking at the diagram, I held down the "button" and then used a screwdriver to dislodge it and now it is out - thank you very much!