Shortcuts not working in Musecore 4

Hi

Please could you assist, I have aways used shortcuts, using Shift and keys to add above notation.

However since I has upgrade to Musecore 4 they do not work.

I have tried to find out if they have changed but it appears they are the same as before the upgrade.

Could you advise me if there is is a problem or am I doing something wrong.

I look forward to hearing from you, this is quite frustrating and makes using the programme much less enjoyable and much slower.

Many thanks