unable to modify the super elevation neither graphically nor in the table _Open Roads

Hi,

I am facing problem in super elevation application. by default it is showing AASHTO rules. since the project site is in middle east (Oman) , I would like to modify the super elevation rate and stations.

In Bentley website videos it is shown that we change graphically both stations and S.E. But I couldn't able to do it. even in the table ( below picture) also I am not able to change stations. please help me in solving this.

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