361
Troubleshooting
4.
To load a COM add-in, in the Add-Ins available box, select the
check box next to the add-in that you want to load, and then click
OK. 
Tip: If the add-in that you want to use is not listed in the Add-Ins
available box, click Add, and then locate the add-in.
5.
To unload a COM add-in, do one of the following:
a)
In the Add-Ins available box, clear the check box next to the
add-in that you want to unload, and then click OK.
Note This unloads the add-in from memory but keeps its name in the list of
available add-ins. It does not delete the add-in from your computer.
b)
To remove a COM add-in from the list of available add-ins and
to delete the add-in from your computer, click its name in the
Add-ins available box, and then click Remove.
15.3
Upgrade to Latest Version
It is always advised to install the latest released version of JChem
for Excel (JCXL), which can be always downloaded from ChemAxon's
website:
http://www.chemaxon.com/download/jchem-for-office/#jc4xl
If you have only JCXL (without JChem for Office) it is advised to
uninstall first your current version from your computer in Control
Panel/Programs/Programs and Features.
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362
Troubleshooting
15.4
No help available for JChem for Excel functions
Since 6.0 version of JChem for Excel "Help" is available for JChem for
Excel functions in Function Arguments dialog. If you are opening this
dialog and you can see that there is "No help available".
The reason why this can happen is probably because for some
reasons (eg. installer issues) JCFunctions Add-In is not checked-in in
your Excel Add-Ins  list:
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363
Troubleshooting
1. Please, check-in the Jcfunctions check-box and press OK and close
your Excel.
2. Open MS Excel again and check if the JChemExcel functions are
displayed in categories (as it is described in Custom Excel Chemical
Functions topic), and select the relevant category (in this case H-
Bond_Donor_Acceptor category) and select JCAcceptorCount function:
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364
Troubleshooting
3. Help is available in Insert  Function and Function Arguments dialog
as  well:
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365
User Interface Customization
16
User Interface Customization
It is possible to customize the ribbon and the context menu of JChem
for Excel. 
Please see  the  details in the Developer Guide:
Customization of the Ribbon
Customization of the Context Menu
17
Actions Reference
17.1
AboutAction
Description: Opens the "About JChem for Excel" window to show the
exact version number.
17.2
AddEditStructureSingleCellAction
Description: Opens the structure editor to add a new structure to an
empty Excel cell or to edit the existing structure in the Excel cell.
Details: Add a structure to a cell and Edit a structure in a cell
17.3
AddEditStructureTaskPaneAction
Description: Opens the Task Pane Editor to add a new structure to an
empty Excel cell or to edit the existing structure in the Excel cell.
17.4
ClearFilterAction
Description: Clears the actual structure filtering and displays the
hidden rows with structures again.
Details: Structure Filter
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366
Actions Reference
17.5
ConvertAccordToJC4XLAction
Description: Converts an Accord for Excel workbook to JChem for
Excel compatible workbook.
The ConvertAccordToJC4XLAction is not available in the JChem for
Excel ribbon/context menu/menu/toolbar by default but it is possible
to make it available by customization of the ribbon/context menu/
menu/toolbar.
After customization, clicking on the button in the opened Accord for
Excel workbook, the converted file can be saved with a specified
filename:
If the conversion processed successfully, an informing message
appears:
In Accord for Excel files structures and IDs will be converted to a
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367
Actions Reference
JCIDSYSStructure function, this way original IDs will be kept and will
be available for further application. All JChem for Excel functions and
features - including the structure handling - are available in the
newly generated (converted) file. The old Accord for Excel workbook
is kept without any changes.
17.6
ConvertChemDrawToJC4XLAction
Description: Converts a ChemDraw for Excel workbook to JChem for
Excel compatible workbook.
The ConvertChemDrawToJC4XLAction is not available in the JChem
for Excel ribbon/context menu/menu/toolbar by default but it is
possible to make it available by customization of the ribbon/context
menu/menu/toolbar.
After customization, clicking on the button in the opened ChemDraw
for Excel workbook, the converted file can be saved with a specified
filename:
If the conversion processed successfully, an informing message
appears:
368
Actions Reference
All JChem for Excel functions and features - including the structure
handling - are available in the newly generated (converted) file.
Structures will be available in JCSYSStructure function. The original
ChemDraw for Excel workbook is kept without any changes, but the
converted file will remain opened.
17.7
ConvertISISToJC4XLAction
Description: Converts an ISIS for Excel workbook to JChem for Excel
compatible workbook.
The ConvertISISToJC4XLAction is not available in the JChem for Excel
ribbon/context menu/menu/toolbar by default but it is possible to
make it available by customization of the ribbon/context menu/menu/
toolbar.
After customization, clicking on the button in the opened ISIS for
Excel workbook, the converted file can be saved with a specified
filename:
369
Actions Reference
If the conversion processed successfully, an informing message
appears:
All JChem for Excel functions and features - including the structure
handling - are available in the newly generated (converted) file.
Structures will be available in JCSYSStructure function. The original
ISIS for Excel workbook is kept without any changes, but the
converted file will remain opened.
17.8
DecreaseStructureSizeAction
Description: Decreases the size of the structures by 10%. It resizes
both the column width, and row height. 
Details: Resizing Structures
370
Actions Reference
17.9
EmbedInJCSMILESAction
Description: Displays SMILES as an embedded function by a simple
click on the appropriate button in the ribbon. 
Clicking on the button the function (JCSysstructure) that describes
the structure will be embedded into JCSMILES function and as a result
SMILES appears in the cell. This action works different from 
ConvertToSMILESAction because it doesn't convert the structure to
SMILES, but keeps the original structure information providing the
possibility to switch with a simple click between SMILES and
structure. Structures can be displayed again by using the 
UnembedFromJCSMILESAction.
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