Hi and sorry not be able to understand this myself, i tried some characters sheet code like this : <div> <table style="text-align: center; width: 100%;" border="1" cellpadding="2" cellspacing="2"> <tbody> <tr> <td style="text-align: center;"> <Button name="roll_RFOR" type='roll' value='/roll 1d20! + @{FOR}-10'>FOR</Button> </td> <td style="text-align: center;"> <Button name="roll_RDEX" type='roll' value='/roll 1d20! + @{DEX}-10'>DEX</Button> </td> <td style="text-align: center;"> <Button name="roll_RINT" type='roll' value='/roll 1d20! + @{INT}-10'>INT</Button> </td> <td style="text-align: center;"> <Button name="roll_RVOL" type='roll' value='/roll 1d20! + @{VOL}-10'>VOL</Button> </td> </tr> <tr> <td><input type="number" name="attr_FOR" value="0" /></td> <td><input type="number" name="attr_DEX" value="0" /></td> <td><input type="number" name="attr_INT" value="0" /></td> <td><input type="number" name="attr_VOL" value="0" /></td> </tr> <tr> <td> <input type="number" name="attr_BPV" value="10+(@{FOR}*2)" /> <input type="number" name="attr_XPV" value='0' /> <input type="number" name="attr_PV" value='@{BPV}+@{XPV}' disable="true" /> </td> <!-- i'll try this later <td> <input type="number" name="attr_BPM" value='@{VOL} + @{VOL} + 10' /> <input type="number" name="attr_XPM" value="0" /> <input type="number" name="attr_PM" value="@{BPM} + @{XPM}" /> </td> <td> <input type="number" name="attr_BMR" value="@{FOR} + 4" /> <input type="number" name="attr_XMR" value="0" /> <input type="number" name="attr_MR" value="@{BMR}+@{XMR}" /> </td> --> </tr> </tbody> </table> </div> Sooooo, here the buttons work perfectly fine ==>> <Button name="roll_RFOR" type='roll' value='/roll 1d20! + @{FOR}-10'>FOR</Button> with the FOR value ==>> <td><input type="number" name="attr_FOR" value="0" /></td> but my ==>> <input type="number" name="attr_BPV" value="10+(@{FOR}*2)" /> or my ==>> <input type="number" name="attr_PV" value='@{BPV}+@{XPV}' disable="true" /> Don't give me any value. Could anyone please help my way to succeed this?