Firstly I thought to spend a week to sketch half pages. But then.. I think if I will sketch one page everyday before main work - it would be a bit easier to sketch it more faster!
I also figured how to work easily with comic in clip studio paint! Now all pages in one big project. Easy to open pages, fix anything, change dialogue, ect.
And it can be shown as 3D comic preview, lol x)
And converted in PDF, epub, for printing... Sounds awesome!