set fixed focus on something, can i?

Hello all:
I have strange request may be which is need to find a way to set fixed VOice over focus.
let's say that i need to use my ipad to Read something and perform what am reading write now, after i go back, my finger touches another thing which make it difficult to go to the thing that was Voice over focused, then use rother to set my reading preferences etc, so, is there away to tell voice over not to leave this thing even if i touched another item on screen?
Thanks in advance