I want to delete multiple files with astro file manager. Is there a way to select many files at once? (like holding ctrl+click in windows)
Press the "Multi" button and then select the files/folders you want, as explained on their help site:
To select multiple files in ASTRO you simply click the "Multi" button. Then, you choose the files or folders you would like to work with (you will know they are selected because the names will turn orange. If you want to copy or move files, go to the location you want those files and press the Copy or Move buttons. If you want to delete, simply press the delete button and they will be removed.