Help developing a block

Hello,

I am using AutoCAD 2009LT:

I am working on developing a titleblock that will display the following info:

I:X/01

I:X/02

thru...

I:X/15

The X is the variable (use attribute?) I am looking to only input 1 time when I open the block, but this number will be displayed on all 15

lines as above. By the way, X is simply a port # such as 0, 1, 2 etc. Not that you need to know but I:X/01 is as follows: I=means input card, X=slot #, 01 thru 15=port #.

As an example, when I open the block, I want it to ask me the SLOT #. Once I enter this # one time, say # 4, it will display as:

I:4/01

I:4/02

thru

I:4/15

Thank you for your help.

I'm not an expert on fields, but I think they would work here.

Are you looking for it just display the "/" or to actually perform the math? If you just want to display them, the wonderful Ms. Finkelstein went over this on her blog. Just set up the field in an Mtext entity and type in the /# after the field.

Figured it out with fields. Thanks to all...