If you're running NX 9.0, you can pre-set this while in the Hole Table dialog by going to the Settings option at the bottom of the dialog, but if you're running an older version of NX you have to edit the Table after placing your it, but the options and effects are the same.
So if you're running something other than NX 9.0, go ahead and create the Hole Table, select it so that the entire table highlights, then press MB3 and select the 'Style' option. You should see a dialog with only a single tab and section titled 'Format' and in that section there is a parameter titled 'Maximum Height'. Simply change it to something which will fit on your drawing and hit OK. The table will automatically be broken into as many sections, no 'higher' than the value entered, as needed. Once separated you can move them independently around your Drawing.
With NX 9.0 you do the same thing only the MB3 option is now called 'Settings' and you will find the option to change the Table Height under the 'Common -> Section' item in the dialog. And if you haven't created the Table yet, while in the Hole Table dailog, you can get to that same Height setting by selecting the 'Settings' icon in the lower Right corner of the dialog and looking under the 'Common -> Section' item.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
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UG/NX Museum:
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