This is the macro I just did for my FC, feel free to use it.
/micon "Silver Dasher" minion
┏ ┳ ━━┓
┃ ┃ ┃
┃ ┃ ┃
┃ ┃ ┃
┣ ━┫ ┃
┃/ /┣ ━━┫
┃ ┃ - Center-ish - ┃
┃ ┣ ━┫
┃ ┃ 》》》 ┃
┃/ /┃ 》 》 》 》 ┃
┃-After this: ┃ Care hands! ┃
┃ ┃ Both sides :D ┃
┗ ━━━━━━ ┻ ━━━━━━━ ┛
EDIT: Added v.1.1 (Keeping the healers in the center for split)
/micon "Silver Dasher" minion
┏ ┳ ━━┓
┃ ┃ ┃
┃ ┃ ┃
┃ ┃ ┃
┣ ━┫ ┃
┃/ /┣ ━━┫
┃ ┃ - Center-ish - ┃
┃ ┣ ━┫
┃ ┃ 》》》 ┃
┃/ /┃ 》 》 》 》 ┃
┃-After this: ┃ Care hands! ┃
┃ ┃ Both sides :D ┃
┗ ━━━━━━ ┻ ━━━━━━━ ┛
Happy farming!