Dear Lena,
There are several issues here...
1) Merging markers... I don't have an answer for that one. Other than
not being able to merge anything into the "record marker" (the first
in the record), I can't remember what causes this problem.
2) Dictionary converted to Read-Only. This happens sometimes when
Toolbox crashes. It can also happen if you run two of the same project
and close the first one that was opened first. See the recent
discussion topic "Editing Disabled" for the cure.
3 & 4) "the other dictionary doesn't contain the whole set of MDF
markers anymore". Are you sure it used to? This combined with
Interlinear not allowing you to use both dictionaries tells me that
you have one of the database type MDF and one that is something else.
To determine the database type, place your cursor in the non-MDF
dictionary and do Database, Properties. The title bar of the dialog
box will be "Database Properties: (name of database type)".
If the data has \lx as the first field and mostly other MDF markers,
then do a plain Standard Format export of the file. This will strip
off the Toolbox information that specifies the database type. Then
open the file with Toolbox and it will ask you to specify which
database type is to be used. Choose the MDF type. That should solve
the problem of the "missing" markers as well as the interlinear
problem of incompatible dictionaries.
5) One of the interlinear options if the parse fails is to "Output
original word". It sounds like perhaps that is checked instead of
"Output failure mark". To locate this do Database, Properties,
Interlinear tab, select the Parse process, Modify... these checkboxes
are on the left side, under the Lexicons button.
Give these a try and let us know what else is happening.
Toolbox Support