Radial and gradient filters on the IPAD doesn't have brush?

Ive looked everywhere for an answer to this! I use Ipad Pro and lightroom mobile and absolutely love it, but! Where the heck is the brush tool for radial and gradient masks?! If you didnt include it.. what the heck?! That was poor judgment adobe. Shame on you! And if you did, where art tho?!

I wana rip my beard out when I decide I want to add a smidgen of exposure to my mask and realize I need to clean up my erase job a bit to do so. Then I have to write down my settings, delete the mask, and erase all over again making sure I do it perfect cause there is no way to fix it after you move on. 

If it exists please tell me where and how...and if it doesnt, PLEASE FOR THE LOVE OF GOD add it in your next update. 

PS... Sometimes I will be erasing a mask and see the red indicator, but other times ill do something and itll go away... And then I have to guess where I am erasing. I cant seem to find the toggle that is causing this annoyance.

Thanks for your guidance! ❤️ 

Mark Grayson Photography