Piano Forum

Hi all.
I am new to this forum and wondering if any of you can help me  with the following.  I would appreciate any tips on how to practise the chromatic ascending and descending passage near the end,  that starts on Eflat in the right hand just before the coda. Is this supposed to be played in free time or strictly with the left hand quavers and 3rd chords ?
Would be grateful for some guidance and practise tips for this passage of this beautiful piece. 🙂