How to adjust the pressure needed on the duel flush push buttons?

How can you adjust the pressure needed to activate the duel flush buttons on an Ideal Standard toilet. Our 6 year old son finds it to hard to push. We have 2 similar toilets and on one the half flush button does not work only the full flush. Both have a similar problem re force needed
David R, February 2017


done
Why not contact Ideal Standard and ask them?

xxx, February 2017