Try this:
**TOOLBARCHANGETEXTPLANE
**TB_CHANGE_TEXT_PLANE
TITLE [_Toolbar("Change Text Plane", _Floating, _Show, 50, 50, 2)]
ID_CHPL1 [_Button("Change Text Plane 1", "chpl1.bmp", "chpl1.bmp")]^C^C(isotext 30 330)
ID_CHPL2 [_Button("Change Text Plane 2", "chpl2.bmp", "chpl2.bmp")]^C^C(isotext 330 30)
ID_CHPL3 [_Button("Change Text Plane 3", "chpl3.bmp", "chpl3.bmp")]^C^C(isotext 330 330)
ID_CHPL4 [_Button("Change Text Plane 4", "chpl4.bmp", "chpl4.bmp")]^C^C(isotext 30 30)
ID_CHPL5 [_Button("Change Text Plane 5", "chpl5.bmp", "chpl5.bmp")]^C^C(isotext 90 30)
ID_CHPL6 [_Button("Change Text Plane 6", "chpl6.bmp", "chpl6.bmp")]^C^C(isotext 90 330)
ID_CHPL7 [_Button("Change Text Plane 7", "chpl7.bmp", "chpl7.bmp")]^C^C(isotext 0 0)
ID_CHPL8 [_Button("Change Text Plane 8", "chpl8.bmp", "chpl8.bmp")]^C^C(isotext 270 0)