At 4th level, the hexcrafter magus gains access to a small number of witch’s hexes. The hexcrafter magus picks one hex from the witch’s hex class feature. He gains the benefit of or uses that hex as if he were a witch of a level equal to his magus level.
This feature replaces spell recall.
Does this mean at 6th lvl and every 2nd lvl after the Hexcrafter gets another hex? The wording is a little vague.
No, as I understand it he just gets the one hex.
Afterwards he can use Hex Arcana listed in the archetype to pick up additional hexes.
At 4th level, the hexcrafter magus gains access to a small number of witch’s hexes. The hexcrafter magus picks one hex from the witch’s hex class feature. He gains the benefit of or uses that hex as if he were a witch of a level equal to his magus level.
This feature replaces spell recall.
Does this mean at 6th lvl and every 2nd lvl after the Hexcrafter gets another hex? The wording is a little vague.
No.
"The hexcrafter magus picks one hex from the witch’s hex class feature. He gains the benefit of or uses that hex as if he were a witch of a level equal to his magus level."
The magus does not gain the entirety of the Witch's Hexes class feature, he gains a single hex.
He also gains the ability to take more hexes via Hex Arcana.
Feats could be used to get hexes as well, via "Extra Arcana," if not Extra Hex.