Right click the sheet and choose properties
In General tab -> Show sheet -> select the conditional and give 0 and click ok..
Sheet is hide..To view -> setting - document properties -> sheets-> select the sheet and click properties and tick to show..
Set variable vhide = 0. and use button to set the variable value as 0/1 by using if(vhide=0,1,0) and use vhide in conditional option in sheet properties..to show or hide the sheet..
Hope it helps