Change default character when I press and hold down a letter

So my problem is I'm using this keyboard with a language has special letters (á, é...). When I tap on a letter and keep my finger on it a little window will pop up above that letter with suggested characters. For example, if I hold down letter A it witt suggest these 2 characters : '@' and 'á'. The problem is I basivally want to use letter 'á' 98% of the time but the default first suggestion is the @ so it will take me another move with my finget zo reach the 'á' character. And this is super frustrating. If there is any option to switch these characters as default first suggestion it will be a big help.