How to use words with accents and symbols in a xmacroplay Script line?

I am using an xmacrorec/xmacroplay (from the package xmacro) in order to Record / Play keystrokes and mouse movements in X displays.

I run:

xmacrorec > file.macro

Which results in a file named "file.macro" with the corresponding code which will be interpreted by xmacroplay in order to repeat every mouse move and/or keystrokes, a sample of the code is shown right here:

MotionNotify 6 97
KeyStrPress Super_L
KeyStrPress Return
KeyStrRelease Return
KeyStrRelease Super_L
KeyStrPress Alt_L
KeyStrPress d
KeyStrRelease Alt_L
KeyStrRelease d
KeyStrPress Control_L
KeyStrPress v
KeyStrRelease v
KeyStrRelease Control_L
KeyStrPress Return
KeyStrRelease Return
ButtonPress 1
ButtonRelease 1
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Shift_R
KeyStrPress b
KeyStrRelease Shift_R
KeyStrRelease b
KeyStrPress l
KeyStrRelease l
KeyStrPress a
KeyStrRelease a
KeyStrPress b
KeyStrRelease b
KeyStrPress l
KeyStrRelease l
KeyStrPress a
KeyStrRelease a
KeyStrPress b
KeyStrRelease b
KeyStrPress l
KeyStrRelease l
KeyStrPress a
KeyStrRelease a
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Tab
KeyStrRelease Tab
KeyStrPress Return
KeyStrRelease Return

As you can see and perhaps already knew, I can use the next code in order to reproduce keystrokes:

KeyStrPress a
KeyStrRelease a

Which will result in an "a".

So let's say I would like to write an "á" (an a with accent). I will need a portion of code like this:

KeyStrPress dead_acute
KeyStrRelease dead_acute
KeyStrPress a
KeyStrRelease a

But I can also use the "String" command inside the code, in order to write a more complex single-line sentence, which will result in an easy to read/understand portion of code, something like:

String Está lista la electrónica?

As you can see, words with accents are Está and electrónica. But when I try to play that portion of code, the accent letters won't appear, resulting in an incomplete sentence like this:

Est lista la electrnica?

I have read that I need to use unicode in order to reproduce such accent words, but even when I already know the corresponding unicode symbols, I don't know how to implement on this.

I would appreciate a lot if anyone explains how to solve this and/or provide any alternatives which play fair with accented words.

Words with accents, special letters like ñ, Ñ and the majority of the special symbols like @ ½ ~ ¬ ° and some other won't work so far.

Thanks in advance.