I used ES File Explorer for a long time, and I think it was a clever idea to have press and hold then move to the screen corners to Share, Copy, Move, Delete files.

As well as to rearrange context menus (such as copy, cut, move, delete, share, etc) bar icons and actions, you could place it to after you press and hold the selected files, you'd just drag n drop over the icons (showing a confirmation tooltip, like when you press and hold each icon, material design guideline) and do the following.

Got it? I can formulate better in case you need.

Illustration GIF: https://media.giphy.com/media/37QULD5XXouornXzCq/giphy.gif