Enter Button Trouble

I have a hero with Expert Shcolar and Wisdom annd learn no spell contact with other hero unlock all spell. Then problem appear while learning spell screen too big and it hide ok button. If this is in PC we can just press enter but in vcmi android there’re no such thing that why i stuck here and have no idea to close teaching spell table without on screen keyboard. Any suggestion to resolve this problem every body?

I have a workaround for this. You can save game before exchanging heroes to force keyboard to popup and do not close keyboard. When hero exchange happens you use the enter button on the keyboard