Read The Bleepin’ Manual
The Spaghetti Mess (aka Layers)
Tap that layers thingy & ZOMG, out pops a menu with literally every single layer you doodled. Riveting stuff.
Addin' More Doodle Layers
Feelin' creative? Smash that "+" button in the upper left & boom—new layer, go nuts. OnSong's all "don't worry bro, I got this" & auto-spawns fresh layers every time you switch tools or mess with your brush size like the indecisive artist you are.
Layer Visibility: The Great On/Off Show
Wanna peek at each layer or hide it like your browser history? Tap the row & toggle that checkmark on & off. You're welcome.
Messin' with Layers (aka The Regret Section)
Hit that Edit button in the upper right like you mean it, & suddenly you can nuke layers or shuffle 'em around like a deck of cards. Totes useful for stackin' one doodle on top of another & pretendin' you planned it that way. Oh, & tap the layer name to rename it somethin' fancier than "Layer 47." When you're done playin' around, tap Done in the upper right & get outta there.
Customizatin' Your Doodles
Wanna tweak how drawings behave? Tap that wrench icon chillin' in the lower left corner of the menu & have at it, ya mad lad.
Select/Deselect Everything (Because Nuance is Overrated)
See that segmented control at the bottom? Use it to select or deselect ALL layers at once. Micromanagement? We don't know her.
Nuclear Option: Obliterate All Layers
Ready to rage quit your masterpiece? Tap the eraser icon in the lower right corner & watch it all go poof—after you confirm you're srsly doin' this. No takesie backsies.